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       # TRANSEND CORPORATION
       
          TRANSEND SIXTY-SEVEN
       
          Card Type              Modem                                   
          Chip Set               Unidentified                            
          I/O Options            Line in (2), DTE port, power jack       
          Maximum Modem Rate     67.2Kbps                                
          Maximum Fax Rate       14.4Kbps                                
          Data Modulation        Bell 103A/212A                          
          Protocol                                                       
                                 ITU-T V34, V.32bis, V.32, V.22bis, V.8, 
                                 V.13, V.14, V.24, V.25                  
          Fax Modulation         ITU-T V.17, V.27ter, V.29, V.21         
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
          Fax Class              Class I                                 
          Data Bus               External                                
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Function  | Label  |       Function        |     Label     |
          |------------------------------------------------------------|
          | Power Jack    |   CN1    | Network port              | CN4 |
          |---------------+----------+---------------------------+-----|
          | Line 1 in     |   CN2    | DTE port (25-pin serial   | CN5 |
          |               |          | connector)                |     |
          |---------------+----------+---------------------------+-----|
          | Line 2 in     |   CN3    | Power switch              | SW1 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          |   LED   |  Color  |  Status  |          Condition          |
          |---------+---------+----------+-----------------------------|
          |   TD    |   Green | Blinking |   Modem transmitting data   |
          |---------+---------+----------+-----------------------------|
          |   TD    |  Green  |   Off    | Modem not transmitting data |
          |---------+---------+----------+-----------------------------|
          |   RD    |  Green  | Blinking |   Modem is receiving data   |
          |---------+---------+----------+-----------------------------|
          |   RD    |  Green  |   Off    | Modem is not receiving data |
          |---------+---------+----------+-----------------------------|
          |   CD    |  Green  |    On    | Carrier signal detected or  |
          |         |         |          |      CD override is on      |
          |---------+---------+----------+-----------------------------|
          |   CD    |  Green  |   Off    | Carrier signal not detected |
          |---------+---------+----------+-----------------------------|
          |   CS    |  Green  |    On    |     CTS signal is high      |
          |---------+---------+----------+-----------------------------|
          |   CS    |  Green  |   Off    |      CTS signal is low      |
          |---------+---------+----------+-----------------------------|
          |   RS    |  Green  |    On    |     RTS signal is high      |
          |---------+---------+----------+-----------------------------|
          |   RS    |  Green  |   Off    |      RTS signal is low      |
          |---------+---------+----------+-----------------------------|
          |   TR    |  Green  |    On    |   Modem is receiving DTR    |
          |         |         |          |  signal/DTR override is on  |
          |---------+---------+----------+-----------------------------|
          |   TR    |  Green  |   Off    | Modem is not receiving DTR  |
          |         |         |          |           signal            |
          |---------+---------+----------+-----------------------------|
          |   OH1   |  Green  |    On    |     Line 1 is off-hook      |
          |---------+---------+----------+-----------------------------|
          |   OH1   |  Green  |   Off    |      Line 1 is on-hook      |
          |---------+---------+----------+-----------------------------|
          |   OH2   |  Green  |    On    |     Line 2 is off-hook      |
          |---------+---------+----------+-----------------------------|
          |   OH2   |  Green  |   Off    |      Line2 is on-hook       |
          |---------+---------+----------+-----------------------------|
          | TST/NMS |   Red   |    On    |  Loopback test in progress  |
          |---------+---------+----------+-----------------------------|
          | TST/NMS |  Green  |    On    | Modem controlled by Network |
          |         |         |          |      Management System      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, +++, A/                                                |
          |------------------------------------------------------------|
          | E, F, M, O, P, T, V, W, X, Y, Z                            |
          |------------------------------------------------------------|
          | &G, &P, &T, &W, &X, &Y, &Z                                 |
          |------------------------------------------------------------|
          |                  Extended AT command set                   |
          |------------------------------------------------------------|
          | \A, \B, \C, \G, \K, \T, \V, \X                             |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S16, S18, S22, S25, S26                                    |
          |------------------------------------------------------------|
          |                                                            |
          |------------------------------------------------------------|
          | Note: See MHI Help File for full command documentation.    |
          +------------------------------------------------------------+
       
                            PROPRIETARY AT COMMAND SET
       
          +------------------------------------------------------------+
          |                           ANSWER                           |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] A                                 |
          |--------------+---------------------------------------------|
          | Description: | Enables answer mode, the modem goes         |
          |              | off-hook                                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |      A0      | Connect to line as answer modem             |
          |--------------+---------------------------------------------|
          |      A1      | Connect to line as originate modem          |
          |--------------+---------------------------------------------|
          |      A2      | Connect to both lines as originate modem    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        ANSWER MODE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] R [cmds]                          |
          |--------------+---------------------------------------------|
          | Description: | Allows modem to switch to answer mode after |
          |              | dialing                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CLEAR TO SEND (CTS)                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Rn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects CTS options                         |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |     &R0      | Normal CTS mode                             |
          |--------------+---------------------------------------------|
          |     &R1      | CTS forced high.                            |
          |--------------+---------------------------------------------|
          |     &R2      | CTS follows DCD                             |
          |--------------+---------------------------------------------|
          |     &R9      | CTS equals RTS                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  COMMUNICATION PROTOCOLS                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Bn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the communication protocol for data |
          |              | calls                                       |
          |------------------------------------------------------------|
          |      Note: The B command allows the simultaneous selection |
          |      of more than one suffix, enabling multiple protocols. |
          |------------------------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |      B0      | Auto selection                              |
          |--------------+---------------------------------------------|
          |      B1      | ITU-T V.21                                  |
          |--------------+---------------------------------------------|
          |      B2      | Bell 103J                                   |
          |--------------+---------------------------------------------|
          |      B3      | Bell 212A                                   |
          |--------------+---------------------------------------------|
          |      B5      | V.22bis                                     |
          |--------------+---------------------------------------------|
          |     B11      | V.32bis                                     |
          |--------------+---------------------------------------------|
          |     B12      | V.34                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CONFIGURATION PROFILES                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Displays active and stored configuration    |
          |              | profiles                                    |
          |--------------+---------------------------------------------|
          |     &V0      | Display received signal status              |
          |--------------+---------------------------------------------|
          |     &V1      | Display active profile                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DATA CARRIER DETECT (DCD)                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the DCD option is enabled   |
          |              | or disabled                                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &C0      | DCD enabled                                 |
          |--------------+---------------------------------------------|
          |     &C1      | DCD enabled after carrier signal detected   |
          |--------------+---------------------------------------------|
          |     &C2      | DCD goes off during disconnection           |
          |--------------+---------------------------------------------|
          |     &C3      | DCD follows V.25bis recommendation          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DATA SET READY (DSR)                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects DSR options                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &S0      | DSR forced high                             |
          |--------------+---------------------------------------------|
          |     &S1      | DSR high only while modem is handshaking or |
          |              | connected                                   |
          |--------------+---------------------------------------------|
          |     &S2      | DSR off for 5 seconds after disconnect      |
          |--------------+---------------------------------------------|
          |     &S3      | DSR follows off-hook                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DATA TERMINAL READY (DTR)                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects modem response to DTR               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &D0      | DTR forced high                             |
          |--------------+---------------------------------------------|
          |     &D1      | DTR toggle causes online command mode       |
          |--------------+---------------------------------------------|
          |     &D2      | Modem disconnects after losing DTR          |
          |--------------+---------------------------------------------|
          |     &D3      | Resets when DTR turns off                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#> [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Dials telephone number according to any     |
          |              | modifiers included in the string            |
          |--------------+---------------------------------------------|
          | Note:        | Any combination of modifiers can be used to |
          |              | produce the desired dial functions in       |
          |              | sequence.                                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      Dn      | Dial telephone number n                     |
          |--------------+---------------------------------------------|
          |  Dn%passwd   | Dial telephone number n and send password   |
          |--------------+---------------------------------------------|
   IMG IMG 1
          |   D [2]   | Dial two telephone numbers and modifiers    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       ERROR CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets error control for connections at       |
          |              | 1200bps and higher                          |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |     &M0      | Asynchronous mode                           |
          |--------------+---------------------------------------------|
          |     &M1      | Synchronous connect mode and asynchronous   |
          |              | off-line command mode.                      |
          |--------------+---------------------------------------------|
          |     &M2      | Synchronous connect mode and asynchronous   |
          |              | off-line command mode and set DTR high.     |
          |--------------+---------------------------------------------|
          |     &M3      | Synchronous connect mode                    |
          |--------------+---------------------------------------------|
          |     &M4      | Synchronous connect mode and V.25bis        |
          |              | autodialer with BISYNC protocol             |
          |--------------+---------------------------------------------|
          |     &M5      | Synchronous connect mode and V.25bis        |
          |              | autodialer with SDLC protocol               |
          |--------------+---------------------------------------------|
          |     &M6      | Synchronous connect mode and V.25bis        |
          |              | asynchronous off-line command mode.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  FACTORY DEFAULT PROFILE                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &F [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Sets values in active profile to values     |
          |              | found in the default profile                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &F0      | Factory profile 0                           |
          |--------------+---------------------------------------------|
          |     &F1      | Factory profile 1                           |
          |--------------+---------------------------------------------|
          |     &F2      | Factory profile 2                           |
          |--------------+---------------------------------------------|
          |     &F3      | Factory profile 3                           |
          |--------------+---------------------------------------------|
          |     &F4      | Factory profile 4                           |
          |--------------+---------------------------------------------|
          |     &F5      | Factory profile 5                           |
          |--------------+---------------------------------------------|
          |     &F6      | Factory profile 6                           |
          |--------------+---------------------------------------------|
          |     &F7      | Factory profile 7                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        HOOK CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Hn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the modem is on-hook or     |
          |              | off-hook                                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      H0      | Modem commanded to go on-hook (hang-up)     |
          |--------------+---------------------------------------------|
          |      H1      | Modem commanded to go off-hook (pick-up)    |
          |--------------+---------------------------------------------|
          |      H2      | Normal hang up enabled                      |
          |--------------+---------------------------------------------|
          |      H3      | Fast hang up enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         LINE TYPE                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects line type                           |
          |--------------+---------------------------------------------|
          |   Command    |                  Line Type                  |
          |--------------+---------------------------------------------|
          |     &L0      | 2-wire switched line                        |
          |--------------+---------------------------------------------|
          |     &L1      | 2-wire leased line                          |
          |--------------+---------------------------------------------|
          |     &L2      | 4-wire leased line                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports four digit product code             |
          |--------------+---------------------------------------------|
          |      I1      | Reports CDC volume of EPROM                 |
          |--------------+---------------------------------------------|
          |      I3      | Reports product version number              |
          |--------------+---------------------------------------------|
          |      I4      | Reports compatibility mode                  |
          |--------------+---------------------------------------------|
          |      I5      | Reports reason for disconnect               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RESULT CODES                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Qn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables modem to send result codes to the   |
          |              | DTE                                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      Q0      | Result code sending enabled                 |
          |--------------+---------------------------------------------|
          |      Q1      | Result code sending disabled                |
          |--------------+---------------------------------------------|
          |      Q2      | Result code sending only in originate mode  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       SPEAKER VOLUME                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Ln [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Controls speaker volume                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      L0      | Low volume setting                          |
          |--------------+---------------------------------------------|
          |      L1      | Low volume setting                          |
          |--------------+---------------------------------------------|
          |      L2      | Medium volume setting                       |
          |--------------+---------------------------------------------|
          |      L3      | Highest volume setting                      |
          +------------------------------------------------------------+
       
                                                                        
       
                             EXTENDED AT COMMAND SET
       
          +------------------------------------------------------------+
          |                         BREAK SEND                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 1-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 20ms                                        |
          |--------------+---------------------------------------------|
          | Description: | Sends break to modem                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       AT COMMAND SET                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *NTn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables AT command set.            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *NT0     | AT command set disabled                     |
          |--------------+---------------------------------------------|
          |     *NT1     | AT command set enabled                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 AUTOMATIC RATE ADAPTATION                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Rn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables automatic rate adaptation  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %R0      | Automatic rate adaptation disabled          |
          |--------------+---------------------------------------------|
          |     %R1      | Automatic rate adaptation enabled with low  |
          |              | BER                                         |
          |--------------+---------------------------------------------|
          |     %R2      | Automatic rate adaptation enabled with      |
          |              | medium BER                                  |
          |--------------+---------------------------------------------|
          |     %R3      | Automatic rate adaptation enabled with high |
          |              | BER                                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         AUTOREDIAL                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Rn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Autoredials.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |         AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls auto-retrain mode and              |
          |              | fallback/fall-forward                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %E0      | Auto-retrain disabled                       |
          |--------------+---------------------------------------------|
          |     %E1      | Auto-retrain enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   BILATERAL DIGITAL LOOP                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *DGn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables bilateral digital loop.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *DG0     | Disables bilateral digital loop             |
          |--------------+---------------------------------------------|
          |     *DG1     | Enables bilateral digital loop              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         BREAK TYPE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Configures action of break signal           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \K1      | Send a break after de-storing data buffers  |
          |--------------+---------------------------------------------|
          |     \K2      | Break sent immediately                      |
          |--------------+---------------------------------------------|
          |     \K3      | Buffered data sent before break signal      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         BUSY MODE                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :Un [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable busy mode.                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :U0      | Busy mode disable                           |
          |--------------+---------------------------------------------|
          |     :U3      | Busy mode enable                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CALL BACK                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables callback                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \S0      | Callback enabled                            |
          |--------------+---------------------------------------------|
          |     \S1      | Callback disabled                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       CALL DISREGARD                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *IC [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Disregards incoming call.                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CARRIER LOSS                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Pn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets disconnect due to carrier loss.        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -P0      | Disconnect by rapid carrier loss (8         |
          |              | seconds)                                    |
          |--------------+---------------------------------------------|
          |     -P1      | Disconnect by normal carrier loss (45       |
          |              | seconds)                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          CHANNEL                           |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -An [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects transmission channel.               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -A0      | ATX channel selected                        |
          |--------------+---------------------------------------------|
          |     -A1      | BTX channel selected                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CLEARDOWN DISCONNECT                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Fn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable cleardown disconnect.        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -F0      | Cleardown disconnect disabled               |
          |--------------+---------------------------------------------|
          |     -F1      | Cleardown disconnect enabled                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       CODED RESPONSE                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *RCn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects coded response speed                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *RC0     | 15 - 4800bps; 18 - 9600bps                  |
          |--------------+---------------------------------------------|
          |     *RC1     | 11 - 4800bps; 12 - 9600bps                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       COMMAND STATE                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable command state.               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :M0      | Command state disabled                      |
          |--------------+---------------------------------------------|
          |     :M1      | Command state enabled                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       COMMAND STATE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects number of retrains.                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :S0      | AT command compatible after reset           |
          |--------------+---------------------------------------------|
          |     :S1      | V.25bis compatible after reset              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        COMPRESSION                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %C0      | Data compression disabled                   |
          |--------------+---------------------------------------------|
          |     %C1      | MNP5 or bilateral V.42bis compression       |
          |              | enabled                                     |
          |--------------+---------------------------------------------|
          |     %C2      | V.42bis on transmitted data enabled         |
          |--------------+---------------------------------------------|
          |     %C3      | V.42bis on received data enabled            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CONNECT MODE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the type of connection the modem   |
          |              | will operate in                             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \N0      | Normal mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N1      | Direct mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N2      | Reliable mode enabled                       |
          |--------------+---------------------------------------------|
          |     \N3      | Auto-reliable mode enabled                  |
          |--------------+---------------------------------------------|
          |     \N4      | LAPM mode enabled                           |
          |--------------+---------------------------------------------|
          |     \N5      | LAPM or normal mode enabled                 |
          |--------------+---------------------------------------------|
          |     \N6      | LAPM or MNP mode enabled                    |
          |--------------+---------------------------------------------|
          |     \N7      | LAPM, MNP, or normal mode enabled           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CONNECTION SPEED LOWER LIMIT                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %L [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Sets slowest allowed connection speed.      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %L0      | Disabled                                    |
          |--------------+---------------------------------------------|
          |     %L1      | Disabled                                    |
          |--------------+---------------------------------------------|
          |     %L2      | Set minimum connect speed to 1200bps.       |
          |--------------+---------------------------------------------|
          |     %L3      | Set minimum connect speed to 2400bps.       |
          |--------------+---------------------------------------------|
          |     %L4      | Set minimum connect speed to 4800bps.       |
          |--------------+---------------------------------------------|
          |     %L5      | Set minimum connect speed to 9600bps        |
          |              | uncoded.                                    |
          |--------------+---------------------------------------------|
          |     %L6      | Set minimum connect speed to 9600bps.       |
          |--------------+---------------------------------------------|
          |     %L7      | Set minimum connect speed to 7200bps        |
          |--------------+---------------------------------------------|
          |     %L8      | Set minimum connect speed to 12.0Kbps.      |
          |--------------+---------------------------------------------|
          |     %L9      | Set minimum connect speed to 14.4Kbps.      |
          |--------------+---------------------------------------------|
          |     %L11     | Set minimum connect speed to 16.8Kbps.      |
          |--------------+---------------------------------------------|
          |     %L12     | Set minimum connect speed to 19.2Kbps.      |
          |--------------+---------------------------------------------|
          |     %L13     | Set minimum connect speed to 21.6Kbps.      |
          |--------------+---------------------------------------------|
          |     %L14     | Set minimum connect speed to 24Kbps.        |
          |--------------+---------------------------------------------|
          |     %L15     | Set minimum connect speed to 26.4Kbps.      |
          |--------------+---------------------------------------------|
          |     %L16     | Set minimum connect speed to 28.8Kbps.      |
          |--------------+---------------------------------------------|
          |     %L17     | Set minimum connect speed to 31.2Kbps.      |
          |--------------+---------------------------------------------|
          |     %L18     | Set minimum connect speed to 33.6Kbps.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CONNECTION SPEED UPPER LIMIT                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets fastest allowed connection speed.      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %B0      | Use DTE speed.                              |
          |--------------+---------------------------------------------|
          |     %B1      | Set maximum connect speed to 300bps.        |
          |--------------+---------------------------------------------|
          |     %B2      | Set maximum connect speed to 1200bps.       |
          |--------------+---------------------------------------------|
          |     %B3      | Set maximum connect speed to 2400bps.       |
          |--------------+---------------------------------------------|
          |     %B4      | Set maximum connect speed to 4800bps.       |
          |--------------+---------------------------------------------|
          |     %B5      | Set maximum connect speed to 9600bps        |
          |              | uncoded.                                    |
          |--------------+---------------------------------------------|
          |     %B6      | Set maximum connect speed to 9600bps.       |
          |--------------+---------------------------------------------|
          |     %B7      | Set maximum connect speed to 7200bps        |
          |--------------+---------------------------------------------|
          |     %B8      | Set maximum connect speed to 12.0Kbps.      |
          |--------------+---------------------------------------------|
          |     %B9      | Set maximum connect speed to 14.4Kbps.      |
          |--------------+---------------------------------------------|
          |     %B11     | Set maximum connect speed to 16.8Kbps.      |
          |--------------+---------------------------------------------|
          |     %B12     | Set maximum connect speed to 19.2Kbps.      |
          |--------------+---------------------------------------------|
          |     %B13     | Set maximum connect speed to 21.6Kbps.      |
          |--------------+---------------------------------------------|
          |     %B14     | Set maximum connect speed to 24Kbps.        |
          |--------------+---------------------------------------------|
          |     %B15     | Set maximum connect speed to 26.4Kbps.      |
          |--------------+---------------------------------------------|
          |     %B16     | Set maximum connect speed to 28.8Kbps.      |
          |--------------+---------------------------------------------|
          |     %B17     | Set maximum connect speed to 31.2Kbps.      |
          |--------------+---------------------------------------------|
          |     %B18     | Set maximum connect speed to 33.6Kbps.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CONNECTION SPEED UPPER LIMIT                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets fastest allowed connection speed.      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :B0      | Use DTE speed.                              |
          |--------------+---------------------------------------------|
          |     :B1      | Set maximum connect speed to 300bps.        |
          |--------------+---------------------------------------------|
          |     :B2      | Set maximum connect speed to 1200bps.       |
          |--------------+---------------------------------------------|
          |     :B3      | Set maximum connect speed to 2400bps.       |
          |--------------+---------------------------------------------|
          |     :B4      | Set maximum connect speed to 4800bps.       |
          |--------------+---------------------------------------------|
          |     :B5      | Set maximum connect speed to 9600bps        |
          |              | uncoded.                                    |
          |--------------+---------------------------------------------|
          |     :B6      | Set maximum connect speed to 9600bps.       |
          |--------------+---------------------------------------------|
          |     :B7      | Set maximum connect speed to 7200bps        |
          |--------------+---------------------------------------------|
          |     :B8      | Set maximum connect speed to 12.0Kbps.      |
          |--------------+---------------------------------------------|
          |     :B9      | Set maximum connect speed to 14.4Kbps.      |
          |--------------+---------------------------------------------|
          |     :B11     | Set maximum connect speed to 16.8Kbps.      |
          |--------------+---------------------------------------------|
          |     :B12     | Set maximum connect speed to 19.2Kbps.      |
          |--------------+---------------------------------------------|
          |     :B13     | Set maximum connect speed to 21.6Kbps.      |
          |--------------+---------------------------------------------|
          |     :B14     | Set maximum connect speed to 24Kbps.        |
          |--------------+---------------------------------------------|
          |     :B15     | Set maximum connect speed to 26.4Kbps.      |
          |--------------+---------------------------------------------|
          |     :B16     | Set maximum connect speed to 28.8Kbps.      |
          |--------------+---------------------------------------------|
          |     :B17     | Set maximum connect speed to 31.2Kbps.      |
          |--------------+---------------------------------------------|
          |     :B18     | Set maximum connect speed to 33.6Kbps.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CT108 FUNCTION DTR                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects CT108 function DTR.                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :D0      | CT108/2                                     |
          |--------------+---------------------------------------------|
          |     :D1      | CT108/1                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CT108 FUNCTION DTR                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects CT108 function DTR.                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :D0      | CT108/2                                     |
          |--------------+---------------------------------------------|
          |     :D1      | CT108/1                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      DATA MODUALTION                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *MMn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects data modulation protocol            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *MM0     | Automatic modulation selection              |
          |--------------+---------------------------------------------|
          |     *MM1     | ITU-T V.21                                  |
          |--------------+---------------------------------------------|
          |     *MM2     | Bell 103J                                   |
          |--------------+---------------------------------------------|
          |     *MM3     | Bell 212A                                   |
          |--------------+---------------------------------------------|
          |     *MM5     | ITU-T V.22bis                               |
          |--------------+---------------------------------------------|
          |    *MM11     | ITU-T V.32bis                               |
          |--------------+---------------------------------------------|
          |    *MM12     | ITU-T V.34                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DATA RATE SELECT SIGNAL                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *FBn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects signal response.                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *FB0     | Ignores data rate select signal             |
          |--------------+---------------------------------------------|
          |     *FB1     | Signal transition causes DTE speed fallback |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DIAL ON MANUAL CONNECTION                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Dial on manual connection enable/disable    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %M0      | Dial on manual connection disabled          |
          |--------------+---------------------------------------------|
          |     %M1      | Dial on manual connection enabled           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAL STORED NUMBER                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Aun [cmds]                       |
          |--------------+---------------------------------------------|
          | Range:       | 0-9                                         |
          |--------------+---------------------------------------------|
          | Description: | Dials number stored at location n when      |
          |              | modem is in command state and the DTR       |
          |              | signal transitions.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DIAL TRANSMISSION LEVEL                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *TDn [cmds]                       |
          |--------------+---------------------------------------------|
          | Range:       | 9-30                                        |
          |--------------+---------------------------------------------|
          | Unit:        | -1dBm                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets transmission level                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         DISCONNECT                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable cleardown disconnect.        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -H0      | Disconnect by data and DCD loss disabled    |
          |--------------+---------------------------------------------|
          |     -H1      | Disconnect by carrier loss disabled         |
          |--------------+---------------------------------------------|
          |     -H2      | Disconnect by 4 minute data loss enabled    |
          |--------------+---------------------------------------------|
          |     -H3      | Disconnect by DCD and data loss enabled     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DISCONNECT BUFFER DELAY                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %D [cmds]                         |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 second                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets disconnect buffer delay; %D0 will      |
          |              | disable this function.                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         DTE SPEED                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Un [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 1200-46800                                  |
          |--------------+---------------------------------------------|
          | Unit:        | 1bps                                        |
          |--------------+---------------------------------------------|
          | Description: | Sets DTE speed                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         FAST TRAIN                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *FTn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables fast train.                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *FT0     | Fast train disabled                         |
          |--------------+---------------------------------------------|
          |     *FT1     | Fast train enabled                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     FLOW CONTROL TYPE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Qn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets type of flow control used by modem     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \Q0      | DTE flow control disabled                   |
          |--------------+---------------------------------------------|
          |     \Q1      | DTE bi-directional XON/XOFF flow control    |
          |              | enabled                                     |
          |--------------+---------------------------------------------|
          |     \Q2      | CTS flow control by DCE enabled             |
          |--------------+---------------------------------------------|
          |     \Q3      | Bi-directional RTS/CTS flow control enabled |
          |--------------+---------------------------------------------|
          |     \Q4      | DCE flow control disabled                   |
          |--------------+---------------------------------------------|
          |     \Q5      | Unidirectional XON/XOFF flow control by DCE |
          |              | enabled                                     |
          |--------------+---------------------------------------------|
          |     \Q6      | CTS flow control to DTE enabled             |
          |--------------+---------------------------------------------|
          |     \Q7      | CTS flow control to DTE disabled            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INTERFACE SPEED                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable interface speed.             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -V0      | Interface speed disabled                    |
          |--------------+---------------------------------------------|
          |     -V1      | Interface speed enabled                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                LAPM DETECTI0N PHASE CONTROL                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables LMNP detection phase       |
          |              | control                                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \M0      | LAPM detection phase control disabled       |
          |--------------+---------------------------------------------|
          |     \M1      | LAPM detection phase control enabled        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        LEASED LINE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *LB [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Return to leased line from dial backup.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               LEASED LINE TRANSMISSION LEVEL               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *TLn [cmds]                       |
          |--------------+---------------------------------------------|
          | Range:       | 9-30                                        |
          |--------------+---------------------------------------------|
          | Unit:        | -1dBm                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets transmission level                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   LIN CURRENT DISCONNECT                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *LCn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects length of disconnect.               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *LC0     | Line current disconnect disabled            |
          |--------------+---------------------------------------------|
          |     *LC1     | Short (8ms) disconnect enabled              |
          |--------------+---------------------------------------------|
          |     *LC2     | Long (90ms) disconnect enabled              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                LOCAL ANALOG LOOPBACK SIGNAL                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Lan [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects signal response.                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *LA0     | Ignores local analog loopback signal        |
          |--------------+---------------------------------------------|
          |     *LA1     | DTE commanded local analog loopback         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         LOOPBACKS                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -In [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable loopbacks.                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -I0      | Interface loopbacks disabled                |
          |--------------+---------------------------------------------|
          |     -I1      | CT141 - LAL enabled                         |
          |--------------+---------------------------------------------|
          |     -I2      | CT140 - RDL enabled                         |
          |--------------+---------------------------------------------|
          |     -I3      | CT140, CT141 enabled                        |
          |--------------+---------------------------------------------|
          |     -I4      | CT140 with inverted polarity enabled        |
          |--------------+---------------------------------------------|
          |     -I5      | CT140 with inverted polarity, CT141 enabled |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    MONITOR LEASED LINE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :Tn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects time in minutes that leased line is |
          |              | monitored.                                  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :T0      | 5 minutes                                   |
          |--------------+---------------------------------------------|
          |     :T1      | 15 minutes                                  |
          |--------------+---------------------------------------------|
          |     :T2      | 30 minutes                                  |
          |--------------+---------------------------------------------|
          |     :T3      | 60 minutes                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          OPTIONS                           |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Ron [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Restore/retain options.                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *RO0     | Retains options at disconnect               |
          |--------------+---------------------------------------------|
          |     *RO1     | Restores options at disconnect              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      ORIGINATE/ANSWER                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *ORn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects originate of forced answer mode     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *OR0     | Originate mode                              |
          |--------------+---------------------------------------------|
          |     *OR1     | Answer mode                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          PASSWORD                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %P [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Programs, displays and clears password      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |  %P=passwd   | Programs remote configuration password      |
          |--------------+---------------------------------------------|
          |     %P?      | Reports remote configuration password of    |
          |              | local modem                                 |
          |--------------+---------------------------------------------|
          |  %P=(blank)  | Clears password                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      RATE NEGOTIATION                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *RR [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets negotiation speed.                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *RR0     | Set negotiation speed to 2400bps.           |
          |--------------+---------------------------------------------|
          |     *RR1     | Set negotiation speed to 4800bps.           |
          |--------------+---------------------------------------------|
          |     *RR2     | Set negotiation speed to 7200bps.           |
          |--------------+---------------------------------------------|
          |     *RR3     | Set negotiation speed to 9600bps            |
          |--------------+---------------------------------------------|
          |     *RR4     | Set negotiation speed to 12.0Kbps.          |
          |--------------+---------------------------------------------|
          |     *RR5     | Set negotiation speed to 14.4Kbps.          |
          |--------------+---------------------------------------------|
          |     *RR6     | Set negotiation speed to 16.8Kbps.          |
          |--------------+---------------------------------------------|
          |     *RR7     | Set negotiation speed to 19.2Kbps.          |
          |--------------+---------------------------------------------|
          |     *RR8     | Set negotiation speed to 21.6Kbps.          |
          |--------------+---------------------------------------------|
          |     *RR9     | Set negotiation speed to 24Kbps.            |
          |--------------+---------------------------------------------|
          |    *RR10     | Set negotiation speed to 26.4Kbps.          |
          |--------------+---------------------------------------------|
          |    *RR11     | Set negotiation speed to 28.8Kbps.          |
          |--------------+---------------------------------------------|
          |    *RR12     | Set negotiation speed to 31.2Kbps.          |
          |--------------+---------------------------------------------|
          |    *RR13     | Set negotiation speed to 33.6Kbps.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    REMOTE CONFIGURATION                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %T  [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | %T=passwd establishes remote password       |
          |              | configuration                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   REMOTE LOOPBACK SIGNAL                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *RDn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects signal response.                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *RD0     | Ignores remote loopback signal              |
          |--------------+---------------------------------------------|
          |     *RD1     | DTE commanded remote loopback               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        REPEAT DIAL                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Repeat dial of number n up to 10 attempts.  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    RETRAINS DIAL BACKUP                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :Rn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects number of retrains.                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :R0      | 5 retrains in 4 minutes time                |
          |--------------+---------------------------------------------|
          |     :R1      | 10 retrains in 4 minutes time               |
          |--------------+---------------------------------------------|
          |     :R2      | 15 retrains in 4 minutes time               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   RETURN TO LEASED LINE                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :Pn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable return to leased line.       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :P0      | Return to leased line disabled              |
          |--------------+---------------------------------------------|
          |     :P1      | Return to leased line enabled               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      RING INDICATION                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Rn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets ring indicator                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \R0      | Blinks for rings and stays on for duration  |
          |              | of call                                     |
          |--------------+---------------------------------------------|
          |     \R1      | Blinks for ring and turns off when call is  |
          |              | answered                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      SOFTWARE VERSION                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Displays software version                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      SPEED VARIATION                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %On [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Determines the speed variation tolerated by |
          |              | modem                                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %O0      | Normal speed (-2.5% to 1%)                  |
          |--------------+---------------------------------------------|
          |     %O1      | Extended speed (-2.5% to 2.3%)              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        STORE NUMBER                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *CNx,n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | 0-20                                        |
          | (location)   |                                             |
          |--------------+---------------------------------------------|
          | Description: | Dials number stored at location n in        |
          |              | location x.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   STORED NUMBER DISPLAY                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *ND [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Displays the nine stored telephone numbers. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       TALK/DATA MODE                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Dan [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects talk or data mode.                  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *DA0     | Talk mode                                   |
          |--------------+---------------------------------------------|
          |     *DA1     | Data mode                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          TRANSMIT CHANNEL SELECTION VIA INTERFACE          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Xn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable transmit channel selection   |
          |              | via interface.                              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -X0      | Transmit channel selection via interface    |
          |              | disabled                                    |
          |--------------+---------------------------------------------|
          |     -X1      | Transmit channel selection via interface    |
          |              | enabled                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      V.25BIS PROTOCOL                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] :On [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Byte-oriented/bit-oriented protocol.        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     :O0      | Byte-oriented protocol                      |
          |--------------+---------------------------------------------|
          |     :O1      | Bit enabled protocol                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   V.34 ASYMMETRIC SPEEDS                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Asn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables V.34 asymmetric speeds.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *AS0     | V.34 asymmetric speeds disabled             |
          |--------------+---------------------------------------------|
          |     *AS1     | V.34 asymmetric speeds enabled              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  V.34 ASYMMETRICAL SPEEDS                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Wn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enable/disable interface speed.             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -W0      | Asymmetrical speeds disabled                |
          |--------------+---------------------------------------------|
          |     -W1      | Asymmetrical speeds enabled                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         V.34 SPEED                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects V.34 speeds.                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     -N0      | High speeds for V.34 operation enabled      |
          |--------------+---------------------------------------------|
          |     -N1      | All speeds for V.34 operation enabled       |
          +------------------------------------------------------------+
       
                               S(STATUS) -REGISTERS
       
                                                                        
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S14                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S14=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls echo, result codes and display,    |
          |              | dial mode, and answer/originate mode.       |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | DCE speed                                   |
          |      |       |                                             |
          |      |     1 | DTE speed                                   |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Command echo disabled                       |
          |      |       |                                             |
          |      |     1 | Command echo enabled                        |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Result codes enabled                        |
          |      |       |                                             |
          |      |     1 | Result codes disabled                       |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Display result codes in numeric format      |
          |      |       |                                             |
          |      |     1 | Display result codes in verbose format      |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Ignore response messages                    |
          |      |       |                                             |
          |      |     1 | Originate mode only                         |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Tone dial enabled                           |
          |      |       |                                             |
          |      |     1 | Pulse dial enabled                          |
          |------+-------+---------------------------------------------|
          |  6   |     0 | Normal hang up                              |
          |      |       |                                             |
          |      |     1 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  7   |   0 1 | Answer mode enabled                         |
          |      |       |                                             |
          |      |       | Originate mode enabled                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S15                   |
          |------------------------------------------------------------|
          | Format:       | AT [cmds] S15=n [cmds]                     |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Range:        | 0-255                                      |
          |---------------+--------------------------------------------|
          | Description:  | Controls transmit level, dial backup, and  |
          |               | parity.                                    |
          |---------------+--------------------------------------------|
          |  Bit  | Value |                  Function                  |
          |-------+-------+--------------------------------------------|
          |   0   |     0 | Reserved                                   |
          |-------+-------+--------------------------------------------|
          | 3,2,1 |   000 | 0dBm transmit level                        |
          |       |       |                                            |
          |       |   001 | -3dBm transmit level                       |
          |       |       |                                            |
          |       |   010 | -6dBm transmit level                       |
          |       |       |                                            |
          |       |   011 | -9dBm transmit level                       |
          |       |       |                                            |
          |       |   100 | -12dBm transmit level                      |
          |       |       |                                            |
          |       |   101 | -15dBm transmit level                      |
          |       |       |                                            |
          |       |   110 | -18dBm transmit level                      |
          |       |       |                                            |
          |       |   111 | -21dBm transmit level                      |
          |-------+-------+--------------------------------------------|
          |  5,4  |    00 | Even asynchronous V.25bis parity           |
          |       |       |                                            |
          |       |    01 | Space asynchronous V.25bis parity          |
          |       |       |                                            |
          |       |    10 | Odd asynchronous V.25bis parity            |
          |       |       |                                            |
          |       |    11 | Mark asynchronous V.25bis parity           |
          |-------+-------+--------------------------------------------|
          |  7,6  |     0 | Reserved                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S19                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S19=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-13                                        |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects modulation type                     |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 0-3  |  0000 | Automode                                    |
          |      |       |                                             |
          |      |  0001 | V.21                                        |
          |      |       |                                             |
          |      |  0010 | B103                                        |
          |      |       |                                             |
          |      |  0101 | V.22                                        |
          |      |       |                                             |
          |      |  1000 | B212                                        |
          |      |       |                                             |
          |      |  1011 | V.32bis                                     |
          |      |       |                                             |
          |      |  1100 | V.34                                        |
          |------+-------+---------------------------------------------|
          | 4-7  |     0 | Reserved                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S22                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S22=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls speaker volume and controls,       |
          |              | limits results codes, and pulse dial        |
          |              | make/break ratio.                           |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 1, 0 |    00 | Minimum volume                              |
          |      |       |                                             |
          |      |    01 | Low level volume                            |
          |      |       |                                             |
          |      |    10 | Medium level volume                         |
          |      |       |                                             |
          |      |    11 | High level volume                           |
          |------+-------+---------------------------------------------|
          | 3, 2 |    00 | Speaker off                                 |
          |      |       |                                             |
          |      |    01 | Speaker on until 2100Hz received            |
          |      |       |                                             |
          |      |    10 | Speaker always on                           |
          |      |       |                                             |
          |      |    11 | Speaker on during handshake                 |
          |------+-------+---------------------------------------------|
          | 6 -  |   000 | Basic result codes only enabled             |
          |  4   |       |                                             |
          |      |   100 | Basic and connection speed result codes     |
          |      |       | enabled                                     |
          |      |   101 |                                             |
          |      |       | Basic and connection speed result codes and |
          |      |   110 | dialtone detection enabled                  |
          |      |       |                                             |
          |      |   111 | All result codes except dialtone detection  |
          |      |       | enabled                                     |
          |      |       |                                             |
          |      |       | All result codes enabled                    |
          |------+-------+---------------------------------------------|
          |  7   |     0 | 39/61ms at 10pps (North America)            |
          |      |       |                                             |
          |      |     1 | 33/67ms at 10pps (Europe)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S23                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S23=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Grants/denies remote digital loopback,      |
          |              | controls DTE rate and parity, and sets      |
          |              | guard tone.                                 |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Remote digital loopback denied              |
          |      |       |                                             |
          |      |     1 | Remote digital loopback allowed             |
          |------+-------+---------------------------------------------|
          |  1   |     0 | V.25 VAL enabled                            |
          |      |       |                                             |
          |      |     1 | V.25 VAL disabled                           |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Echo control while online enabled           |
          |      |       |                                             |
          |      |     1 | Echo control while online disabled          |
          |------+-------+---------------------------------------------|
          |  3   |     0 | CTS does not follow DCD                     |
          |      |       |                                             |
          |      |     1 | CTS follows DCD                             |
          |------+-------+---------------------------------------------|
          | 5, 4 |    00 | Parity even                                 |
          |      |       |                                             |
          |      |    01 | Space Parity                                |
          |      |       |                                             |
          |      |    10 | Parity odd                                  |
          |      |       |                                             |
          |      |    11 | Mark or No Parity                           |
          |------+-------+---------------------------------------------|
          | 7, 6 |    00 | Guard tone disabled                         |
          |      |       |                                             |
          |      |    01 | Guard tone 550Hz enabled                    |
          |      |       |                                             |
          |      |    10 | Guard tone 1800Hz enabled                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S27                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S27=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects line type, clock source, and dial   |
          |              | up.                                         |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 1, 0 |    00 | Reserved                                    |
          |------+-------+---------------------------------------------|
          | 3,2  |    00 | Switched line                               |
          |      |       |                                             |
          |      |    01 | 2-wire leased line                          |
          |      |       |                                             |
          |      |    11 | 4-wire leased line                          |
          |------+-------+---------------------------------------------|
          | 5, 4 |    00 | Local modem generates transmit clock source |
          |      |       |                                             |
          |      |    01 | Local DTE generates transmit clock source   |
          |      |       |                                             |
          |      |    10 | Remote DCE/DTE generates transmit clock     |
          |      |       | source                                      |
          |------+-------+---------------------------------------------|
          |  6   |     0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  7   |     0 | Dial on manual connection disabled          |
          |      |       |                                             |
          |      |     1 | Dial on manual connection enabled           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S29                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S29=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-128                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects DTE speed.                          |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 0-4  | 00000 | DTE speed disabled                          |
          |      |       |                                             |
          |      | 00100 | 1200bps                                     |
          |      |       |                                             |
          |      | 00101 | 2400bps                                     |
          |      |       |                                             |
          |      | 00110 | 4800bps                                     |
          |      |       |                                             |
          |      | 00111 | 7200bps                                     |
          |      |       |                                             |
          |      | 01000 | 9600bps                                     |
          |      |       |                                             |
          |      | 01001 | 12.0Kbps                                    |
          |      |       |                                             |
          |      | 01010 | 14.4Kbps                                    |
          |      |       |                                             |
          |      | 01011 | 16.8Kbps                                    |
          |      |       |                                             |
          |      | 01100 | 19.2Kbps                                    |
          |      |       |                                             |
          |      | 01101 | 21.6Kbps                                    |
          |      |       |                                             |
          |      | 01110 | 24.0Kbps                                    |
          |      |       |                                             |
          |      | 01111 | 26.4Kbps                                    |
          |      |       |                                             |
          |      | 10000 | 28.8Kbps                                    |
          |      |       |                                             |
          |      | 10001 | 31.2Kbps                                    |
          |      |       |                                             |
          |      | 10010 | 33.6Kbps                                    |
          |      |       |                                             |
          |      | 10011 | 38.4Kbps                                    |
          |      |       |                                             |
          |      | 10100 | 57.6Kbps                                    |
          |      |       |                                             |
          |      | 10101 | 115.2Kbps                                   |
          |      |       |                                             |
          |      | 10110 | 230.4Kbps                                   |
          |      |       |                                             |
          |      | 10111 | 460.8Kbps                                   |
          |------+-------+---------------------------------------------|
          | 5-7  |     0 | Reserved                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S80                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S80=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects speed variation tolerance, and      |
          |              | asynchronous character size.                |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 01,2 |     0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Normal speed (-2.5% - 1%)                   |
          |      |       |                                             |
          |      |     1 | Extended speed (-2.5% - 2.3%)               |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Return to leased line disabled              |
          |      |       |                                             |
          |      |     1 | Return to leased line enabled               |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          | 7,6  |    00 | Asynchronous character 8bits                |
          |      |       |                                             |
          |      |    01 | Asynchronous character 9bits                |
          |      |       |                                             |
          |      |    10 | Asynchronous character 10bits               |
          |      |       |                                             |
          |      |    11 | Asynchronous character 11bits               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S81                   |
          |------------------------------------------------------------|
          | Format        | AT [cmds] S81=n [cmds]                     |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Range:        | 0-255                                      |
          |---------------+--------------------------------------------|
          | Description:  | Selects block size, buffer mode, break     |
          |               | treatment, V.42 detect.                    |
          |---------------+--------------------------------------------|
          |  Bit  | Value |                  Function                  |
          |-------+-------+--------------------------------------------|
          |  1,0  |    00 | Block size 64 characters                   |
          |       |       |                                            |
          |       |    01 | Block size 128 characters                  |
          |       |       |                                            |
          |       |    10 | Block size 192 characters                  |
          |       |       |                                            |
          |       |    11 | Block size 256 characters                  |
          |-------+-------+--------------------------------------------|
          |  2,3  |    00 | Normal mode buffer disabled                |
          |       |       |                                            |
          |       |    01 | Buffer for 200 characters                  |
          |       |       |                                            |
          |       |    10 | Break fallback enabled                     |
          |-------+-------+--------------------------------------------|
          |   3   |     0 | Normal speed (-2.5% - 1%)                  |
          |       |       |                                            |
          |       |     1 | Extended speed (-2.5% - 2.3%)              |
          |-------+-------+--------------------------------------------|
          | 6,5,4 |   001 | Send break treatment after buffer is empty |
          |       |       |                                            |
          |       |   011 | Send break treatment immediately           |
          |       |       |                                            |
          |       |   101 | Send break sequence with data              |
          |-------+-------+--------------------------------------------|
          |  7,6  |    00 | V.42 detect phase disabled                 |
          |       |       |                                            |
          |       |    01 | V.42 detect phase disabled                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S82                   |
          |------------------------------------------------------------|
          | Format        | AT [cmds] S82=n [cmds]                     |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Range:        | 0-255                                      |
          |---------------+--------------------------------------------|
          | Description:  | Selects flow control, connect message,     |
          |               | pass through, and data compression.        |
          |---------------+--------------------------------------------|
          |  Bit  | Value |                  Function                  |
          |-------+-------+--------------------------------------------|
          | 2,1,0 |   000 | Flow control disabled                      |
          |       |       |                                            |
          |       |   001 | Bilateral XON/XOFF flow control            |
          |       |       |                                            |
          |       |   010 | Unilateral CTS                             |
          |       |       |                                            |
          |       |   011 | Bilateral RTS/CTS                          |
          |       |       |                                            |
          |       |   100 | Bilateral XON/XOFF                         |
          |-------+-------+--------------------------------------------|
          |   3   |     0 | No protocol                                |
          |       |       |                                            |
          |       |     1 | Indicate MNP or LAPM protocol              |
          |-------+-------+--------------------------------------------|
          |   4   |     0 | Pass through disabled                      |
          |       |       |                                            |
          |       |     1 | Pass through enabled                       |
          |-------+-------+--------------------------------------------|
          |  6,5  |    00 | Data compression disabled                  |
          |       |       |                                            |
          |       |    01 | TX and RX data compression enabled         |
          |       |       |                                            |
          |       |    10 | TX data compression enabled                |
          |       |       |                                            |
          |       |    11 | Rx data compression enabled                |
          |-------+-------+--------------------------------------------|
          |   7   |     0 | AKA enabled                                |
          |       |       |                                            |
          |       |     1 | AKA disabled                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S83                   |
          |------------------------------------------------------------|
          | Format        | AT [cmds] S83=n [cmds]                     |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Description:  | Selects DCD detection, dialup disconnect,  |
          |               | digital loopback .                         |
          |---------------+--------------------------------------------|
          |  Bit  | Value |                  Function                  |
          |-------+-------+--------------------------------------------|
          |  0,1  |    00 | Reserved                                   |
          |-------+-------+--------------------------------------------|
          |   2   |     0 | DCD at -43dB                               |
          |       |       |                                            |
          |       |     1 | DCD at -33dB                               |
          |-------+-------+--------------------------------------------|
          |  4,3  |    00 | Dialup line disconnect disabled            |
          |       |       |                                            |
          |       |    01 | Dialup line disconnect by carrier loss     |
          |       |       |                                            |
          |       |    10 | Dialup line disconnect by data loss        |
          |       |       |                                            |
          |       |    11 | Dialup line disconnect by carrier and data |
          |       |       | loss                                       |
          |-------+-------+--------------------------------------------|
          | 7,6,5 |   000 | Digital interface loopbacks disabled       |
          |       |       |                                            |
          |       |   001 | CT141 - LAL enabled                        |
          |       |       |                                            |
          |       |   010 | CT140 - RDL enabled                        |
          |       |       |                                            |
          |       |   011 | CT140 and CT141 enabled                    |
          |       |       |                                            |
          |       |   100 | CT140/enabled                              |
          |       |       |                                            |
          |       |   101 | CT140/ and CT141 enabled                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S84                   |
          |------------------------------------------------------------|
          | Format        | AT [cmds] S84=n [cmds]                     |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Description:  | Selects simulated carrier, transmit level, |
          |               | channel interface .                        |
          |---------------+--------------------------------------------|
          |  Bit  | Value |                  Function                  |
          |-------+-------+--------------------------------------------|
          |   0   |     0 | Simulated carrier disabled                 |
          |       |       |                                            |
          |       |     1 | Simulated carrier enabled                  |
          |-------+-------+--------------------------------------------|
          |  2,1  |     0 | reserved                                   |
          |-------+-------+--------------------------------------------|
          | 5,4,3 |   000 | 0dBm transmit level                        |
          |       |       |                                            |
          |       |     : | :                                          |
          |       |       |                                            |
          |       |     : | :                                          |
          |       |       |                                            |
          |       |   111 | -21dBm transmit level                      |
          |-------+-------+--------------------------------------------|
          |   6   |     0 | Flow control between modems enabled        |
          |       |       |                                            |
          |       |     1 | Flow control between modems disabled       |
          |-------+-------+--------------------------------------------|
          |   7   |     0 | Interface channel select disabled (CT126)  |
          |       |       |                                            |
          |       |     1 | Interface channel select enabled (CT126)   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S85                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S85=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Description: | Selects V.25, ring indicator, busy mode.    |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | V.25 in ASCII                               |
          |      |       |                                             |
          |      |     1 | V.25 in EBCDIC                              |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Blinks while dialing and stays on           |
          |      |       |                                             |
          |      |     1 | Blinks while dialing and turns off when     |
          |      |       | answered                                    |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          |  3   |     0 | V.8 disabled for non V.34 answer            |
          |      |       |                                             |
          |      |     1 | V.8 enabled for V.34 answer                 |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Interface speed (CT111) disabled            |
          |      |       |                                             |
          |      |     1 | Interface speed (CT111) enabled             |
          |------+-------+---------------------------------------------|
          |  5   |     0 | CT108/2                                     |
          |      |       |                                             |
          |      |     1 | CT108/3                                     |
          |------+-------+---------------------------------------------|
          |  6   |     0 | Fast disconnect by DCD loss (5 seconds)     |
          |      |       |                                             |
          |      |     1 | Slow disconnect by DCD loss (45 seconds)    |
          |------+-------+---------------------------------------------|
          |  7   |     0 | Busy mode disabled                          |
          |      |       |                                             |
          |      |     1 | Busy mode enabled                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S86                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S86=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets remote disconnect, rate adaptation,    |
          |              | auto retrain, small block, character length |
          |              | and stop bits.                              |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Remote disconnect disabled                  |
          |      |       |                                             |
          |      |     1 | Cleardown                                   |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Auto-redial disabled                        |
          |      |       |                                             |
          |      |     1 | Auto-redial enabled                         |
          |------+-------+---------------------------------------------|
          | 2,3  |    00 | Automatic rate adaptation disabled          |
          |      |       |                                             |
          |      |    01 | Automatic rate adaptation enabled with low  |
          |      |       | BER                                         |
          |      |    10 |                                             |
          |      |       | Automatic rate adaptation enabled with      |
          |      |    11 | medium BER                                  |
          |      |       |                                             |
          |      |       | Automatic rate adaptation enabled with high |
          |      |       | BER                                         |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Auto retrain disabled                       |
          |      |       |                                             |
          |      |     1 | Auto retrain enabled                        |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Small block off                             |
          |      |       |                                             |
          |      |     1 | Small block on                              |
          |------+-------+---------------------------------------------|
          |  6   |     0 | Character length 7 bits                     |
          |      |       |                                             |
          |      |     1 | Character length 8 bits                     |
          |------+-------+---------------------------------------------|
          |  7   |     0 | 1 stop bit                                  |
          |      |       |                                             |
          |      |     1 | 2 stop bits                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S87                   |
          |------------------------------------------------------------|
          | Format        | AT [cmds] S87=n [cmds]                     |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Range:        | 0-255                                      |
          |---------------+--------------------------------------------|
          | Description:  | Selects protocol and command state.        |
          |---------------+--------------------------------------------|
          |  Bit  | Value |                  Function                  |
          |-------+-------+--------------------------------------------|
          | 2,1,0 |   000 | Normal mode                                |
          |       |       |                                            |
          |       |   001 | Direct mode                                |
          |       |       |                                            |
          |       |   010 | MNP mode                                   |
          |       |       |                                            |
          |       |   011 | MNP or normal mode                         |
          |       |       |                                            |
          |       |   100 | LAPM mode                                  |
          |       |       |                                            |
          |       |   101 | LAPM or normal mode                        |
          |       |       |                                            |
          |       |   110 | LAPM or MNP mode                           |
          |       |       |                                            |
          |       |   111 | LAPM, MNP, or normal mode                  |
          |-------+-------+--------------------------------------------|
          |   3   |     0 | DTR dial disabled                          |
          |       |       |                                            |
          |       |     1 | DTR dial enabled                           |
          |-------+-------+--------------------------------------------|
          |  5,4  |    00 | Display negotiation disabled               |
          |       |       |                                            |
          |       |    01 | Display negotiation enabled                |
          |       |       |                                            |
          |       |    10 | Displays at DCE link rate                  |
          |-------+-------+--------------------------------------------|
          |   6   |     0 | AT command state                           |
          |       |       |                                            |
          |       |     1 | V.25bis command state                      |
          |-------+-------+--------------------------------------------|
          |   7   |     0 | Command state disable                      |
          |       |       |                                            |
          |       |     1 | Command state enable                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S90-                  |
          |------------------------------------------------------------|
          | Format        | AT [cmds] S90=n [cmds]                     |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Range:        | 8-255                                      |
          |---------------+--------------------------------------------|
          | Description:  | Enables modem speed.                       |
          |---------------+--------------------------------------------|
          |  Bit  | Value |                  Function                  |
          |-------+-------+--------------------------------------------|
          | 2,1,0 |     0 | Reserved                                   |
          |-------+-------+--------------------------------------------|
          |   3   |     1 | 1200bps                                    |
          |-------+-------+--------------------------------------------|
          |   4   |     1 | 2400bps                                    |
          |-------+-------+--------------------------------------------|
          |   5   |     1 | 4800bps                                    |
          |-------+-------+--------------------------------------------|
          |   6   |     1 | 7200bps                                    |
          |-------+-------+--------------------------------------------|
          |   7   |     1 | 9600bps                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S91-                  |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S91=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Description: | Enables modem speed.                        |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | 12.0Kbps                                    |
          |------+-------+---------------------------------------------|
          |  1   |     1 | 14.4Kbps                                    |
          |------+-------+---------------------------------------------|
          |  2   |     1 | 16.8Kbps                                    |
          |------+-------+---------------------------------------------|
          |  3   |     1 | 19.2Kbps                                    |
          |------+-------+---------------------------------------------|
          |  4   |     1 | 21.6Kbps                                    |
          |------+-------+---------------------------------------------|
          |  5   |     1 | 24.0Kbps                                    |
          |------+-------+---------------------------------------------|
          |  6   |     1 | 26.4Kbps                                    |
          |------+-------+---------------------------------------------|
          |  7   |     1 | 28.8Kbps                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S92-                  |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S91=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Enables modem speed.                        |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | 31.2Kbps                                    |
          |------+-------+---------------------------------------------|
          |  1   |     1 | 33.6Kbps                                    |
          |------+-------+---------------------------------------------|
          | 2-7  |     0 | Reserved                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S94-                  |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S94=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets network management system parameters.  |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 4-0  | 00000 | Address line 0                              |
          |      |       |                                             |
          |      | 00001 | Address line 1                              |
          |      |       |                                             |
          |      |     : | :                                           |
          |      |       |                                             |
          |      |     : | :                                           |
          |      |       |                                             |
          |      | 11110 | Address line 30                             |
          |      |       |                                             |
          |      | 11111 | Address line 31                             |
          |------+-------+---------------------------------------------|
          | 6,5  |    00 | Bus speed at 1200bps                        |
          |      |       |                                             |
          |      |    01 | Bus speed at 2400bps                        |
          |      |       |                                             |
          |      |    10 | Bus speed at 4800bps                        |
          |      |       |                                             |
          |      |    11 | Bus speed at 9600bps                        |
          |------+-------+---------------------------------------------|
          |  7   |     0 | NMS capacity disabled                       |
          |      |       |                                             |
          |      |     1 | NMS capacity enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S95-                  |
          |------------------------------------------------------------|
          | Format        | AT [cmds] S95=n [cmds]                     |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Description:  | Selects callback, caller ID, auto baud and |
          |               | number code functions.                     |
          |---------------+--------------------------------------------|
          |  Bit  | Value |                  Function                  |
          |-------+-------+--------------------------------------------|
          | 0,1,2 |     0 | Reserved                                   |
          |-------+-------+--------------------------------------------|
          |   3   |     0 | Call back disabled                         |
          |       |       |                                            |
          |       |     1 | Call back enabled                          |
          |-------+-------+--------------------------------------------|
          |   4   |     0 | Caller ID detection disabled               |
          |       |       |                                            |
          |       |     1 | Caller ID detection enabled                |
          |-------+-------+--------------------------------------------|
          |   5   |     0 | L1 disconnect L2 off                       |
          |       |       |                                            |
          |       |     1 | L1 disconnect L2 on                        |
          |-------+-------+--------------------------------------------|
          |   6   |     0 | Auto baud disabled                         |
          |       |       |                                            |
          |       |     1 | Auto baud enabled                          |
          |-------+-------+--------------------------------------------|
          |   7   |     0 | Standard (15 - 4800bps, 18 - 9600bps)      |
          |       |       |                                            |
          |       |     1 | Alternative (15 - 4800bps, 18 - 9600bps)   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S96-                  |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S96=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets speed options, storing options, line   |
          |              | transmission level.                         |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | V.34 only for high speeds                   |
          |      |       |                                             |
          |      |     1 | V.34 for all speeds                         |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Call waiting off                            |
          |      |       |                                             |
          |      |     1 | Call waiting on                             |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Asymmetrical speed option disabled          |
          |      |       |                                             |
          |      |     1 | Asymmetrical speed option enabled           |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Store option when disconnect                |
          |      |       |                                             |
          |      |     1 | Reset option when disconnect                |
          |------+-------+---------------------------------------------|
          | 5,4  |    00 | Switched line TX level at -1dB              |
          |      |       |                                             |
          |      |    01 | Switched line TX level at -2dB              |
          |      |       |                                             |
          |      |    10 | Switched line TX level at -3dB              |
          |------+-------+---------------------------------------------|
          |  7   |    00 | Leased line TX level at -1dB                |
          |      |       |                                             |
          |      |    01 | Leased line TX level at -2dB                |
          |      |       |                                             |
          |      |    10 | Leased line TX level at -3dB                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        BREAK LENGTH                        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S30=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 20ms                                        |
          |--------------+---------------------------------------------|
          | Description: | Determines the break length sent to the DTE |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       CALLBACK DELAY                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S32=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Sets the callback delay                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      CALLBACK RETRIES                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S33=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the number of callback retries         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DISCONNECT BUFFER DELAY                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S39=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 second                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets maximum duration allowed during        |
          |              | buffered data calls for modem to perform    |
          |              | clearing functions after losing             |
          |              | carrier-signal or receiving a clear call    |
          |              | signal from the remote modem and before     |
          |              | initiating hang-up process. A value of 255  |
          |              | allows an indefinite amount of time to send |
          |              | buffered data prior to hanging-up.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           FLOW CONTROL CHARACTER - XOFF FROM DTE           |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S37=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XOFF   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            FLOW CONTROL CHARACTER - XOFF TO DTE            |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S35=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XOFF   |
          |              | to DTE                                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           FLOW CONTROL CHARACTER - XON FROM DTE            |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S36=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XON to |
          |              | DTE                                         |
          +------------------------------------------------------------+
       
                                                                        
       
          +------------------------------------------------------------+
          |            FLOW CONTROL CHARACTER - XON TO DTE             |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S34=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XON to |
          |              | DTE                                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S38=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 10 seconds                                  |
          |--------------+---------------------------------------------|
          | Description: | Maximum duration of DTE and DCE inactivity  |
          |              | allowed prior to initiating hang-up         |
          |              | process.                                    |
          |------------------------------------------------------------|
          |      Note: S38=0 disables the timer and allows indefinite  |
          |      inactivity.                                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          LOOKBACK                          |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S13=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 minute                                    |
          |--------------+---------------------------------------------|
          | Description: | Selects the amount of time modem will       |
          |              | remain in dial backup mode before retrying  |
          |              | leased line mode                            |
          |------------------------------------------------------------|
          |      Note: S13=0 disables automatic lookback to leased     |
          |      line.                                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    NORMAL MODE FALLBACK                    |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S88=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ANCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets fallback character for normal mode.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      OPERATING MODES                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S21=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls modem operating mode, disconnect   |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 6,0  |    00 | DSR always on                               |
          |      |       |                                             |
          |      |    01 | DSR on when modem is online                 |
          |      |       |                                             |
          |      |    10 | DSR off 5 seconds after disconnect          |
          |      |       |                                             |
          |      |    11 | DSR follows off-hook                        |
          |------+-------+---------------------------------------------|
          | 5,1  |    00 | DCD always on                               |
          |      |       |                                             |
          |      |    01 | DCD on when carrier is present              |
          |      |       |                                             |
          |      |    10 | DCD on except 5 second after disconnect     |
          |      |       |                                             |
          |      |    11 | DCD follows remote RTS                      |
          |------+-------+---------------------------------------------|
          |  2   |     0 | CTS follows RTS by S26 delay                |
          |      |       |                                             |
          |      |     1 | CTS always on                               |
          |------+-------+---------------------------------------------|
          | 4,3  |    00 | Ignores DTR                                 |
          |      |       |                                             |
          |      |    01 | Assumes command mode when DTR turns off     |
          |      |       |                                             |
          |      |    10 | Hangs up when DTR turns off                 |
          |      |       |                                             |
          |      |    11 | Resets when DTR turns off                   |
          |------+-------+---------------------------------------------|
          |  7   |     0 | Long space disconnect disabled              |
          |      |       |                                             |
          |      |     1 | Long space disconnect enabled               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 TIME ABSENCE DISCONNECTION                 |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S97=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Maximum duration of DTE and DCE inactivity  |
          |              | allowed prior to initiating hang-up         |
          |              | process.                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      TIMEOUT PASSWORD                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S31=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the callback password                  |
          +------------------------------------------------------------+