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       # NETGEAR, INC.
       
          XM128 ISDN
       
          Card Type              ISDN Modem                              
          Chip Set               Unidentified                            
          I/O Options            25-pin serial port, ISDN interface via  
                                 RJ-45 connector (U or S/T), power       
                                                                         
                                 analog telephone line out (2)           
          ISDN Data Rate         128Kbps                                 
          ISDN Modulation        PPP, MLPPP, BACP, X.75, V.110, V.120    
          Protocol               
          Error                  V.42bis                                 
          Correction/Compression 
          Data Bus               External                                
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |     Function     |  Label   |    Function     |   Label    |
          |------------------------------------------------------------|
          | Power                   |   CN1   | Telephone line 1 | CN4 |
          |-------------------------+---------+------------------+-----|
          | 25-pin serial port      |   CN2   | Telephone line 2 | CN5 |
          |-------------------------+---------+------------------+-----|
          | ISDN interface (RJ-45)  |   CN3   | Power switch     | SW1 |
          +------------------------------------------------------------+
       
                                         
       
                                         
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          |  LED  |   Color    |  Status   |         Condition         |
          |-------+------------+-----------+---------------------------|
          |   PWR |    Yellow  |    On     |        Power is on        |
          |-------+------------+-----------+---------------------------|
          |   PWR |    Yellow  |    Off    |       Power is off        |
          |-------+------------+-----------+---------------------------|
          |  DCH  |    Green   |    On     | ISDN link on D channel is |
          |       |            |           |          active           |
          |-------+------------+-----------+---------------------------|
          |  DCH  |    Green   | Blinking  |  D channel connection is  |
          |       |            |           |     being established     |
          |-------+------------+-----------+---------------------------|
          |  DCH  |    Green   |    Off    | ISDN link on D channel is |
          |       |            |           |         inactive          |
          |-------+------------+-----------+---------------------------|
          |  B1   |    Green   |    On     | Connection is established |
          |       |            |           |      on B-channel 1       |
          |-------+------------+-----------+---------------------------|
          |  B1   |    Green   |    Off    |  Connection is broken on  |
          |       |            |           |        B-channel 1        |
          |-------+------------+-----------+---------------------------|
          |  B2   |    Green   |    On     | Connection is established |
          |       |            |           |        B-channel 2        |
          |-------+------------+-----------+---------------------------|
          |  B2   |    Green   |    Off    |  Connection is broken on  |
          |       |            |           |        B-channel 2        |
          |-------+------------+-----------+---------------------------|
          |  AA   |    Green   |    On     | Automatic answer mode is  |
          |       |            |           |          enabled          |
          |-------+------------+-----------+---------------------------|
          |  AA   |    Green   |    Off    | Automatic answer mode is  |
          |       |            |           |         disabled          |
          |-------+------------+-----------+---------------------------|
          |  CP   |    Green   |    On     |    Data compression is    |
          |       |            |           |    active on B-channel    |
          |-------+------------+-----------+---------------------------|
          |  CP   |    Green   | Blinking  | Incoming call is ringing  |
          |-------+------------+-----------+---------------------------|
          |  CP   |    Green   |    Off    |  Data compression is not  |
          |       |            |           |    active on B-channel    |
          |-------+----------------------------------------------------|
          |  DTR  | Green  |   On    |   Terminal/computer ready for   |
          |       |        |         |            operation            |
          |-------+--------+---------+---------------------------------|
          |   DTR | Green  |   Off   | Terminal/computer not ready for |
          |       |        |         |            operation            |
          |-------+--------+---------+---------------------------------|
          |  DSR  | Green  |   On    |  Modem is ready for operations  |
          |-------+--------+---------+---------------------------------|
          |   DSR | Green  |   Off   |     Modem is not ready for      |
          |       |        |         |           operations            |
          |-------+--------+---------+---------------------------------|
          |  CTS  | Green  |   On    |   Modem ready to receive data   |
          |       |        |         |            from DTE             |
          |-------+--------+---------+---------------------------------|
          |  CTS  | Green  |   Off   |  Modem is not ready to receive  |
          |       |        |         |          data from DTE          |
          |-------+--------+---------+---------------------------------|
          |  RTS  | Green  |   On    |    Sending device is enabled    |
          |-------+--------+---------+---------------------------------|
          |  RTS  | Green  |   Off   |   Sending device is disabled    |
          |-------+--------+---------+---------------------------------|
          |  TD   | Green  |   On    | DTE is transmitting data to the |
          |       |        |         |              modem              |
          |-------+--------+---------+---------------------------------|
          |  TD   | Green  |   Off   | DTE is not ransmitting data to  |
          |       |        |         |            the modem            |
          |-------+--------+---------+---------------------------------|
          |   RD  | Green  |   On    | DTE is receiving data from the  |
          |       |        |         |              modem              |
          |-------+--------+---------+---------------------------------|
          |   RD  | Green  |   Off   | DTE is not receiving data from  |
          |       |        |         |          to the modem           |
          |-------+--------+---------+---------------------------------|
          |   PH1 | Green  |   On    |  Telephone line 1 is off-hook   |
          |-------+--------+---------+---------------------------------|
          |   PH1 | Green  |   Off   |   Telephone line 1 is on-hook   |
          |-------+--------+---------+---------------------------------|
          |   PH2 | Green  |   On    |  Telephone line 2 is off-hook   |
          |-------+--------+---------+---------------------------------|
          |   PH2 | Green  |   Off   |   Telephone line 2 is on-hook   |
          +------------------------------------------------------------+
       
          +---------------------------------------------------------+
          |                  SUPPORTED COMMAND SET                  |
          |---------------------------------------------------------|
          |                    Basic AT Commands                    |
          |---------------------------------------------------------|
          | AT, ‘+++’, A/                                           |
          |---------------------------------------------------------|
          | A, E, L, M, Q, V                                        |
          |---------------------------------------------------------|
          | &C, &F, &Z                                              |
          |---------------------------------------------------------|
          |                       S Registers                       |
          |---------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S7, S8, S10, S12, S25           |
          |---------------------------------------------------------|
          |                                                         |
          |---------------------------------------------------------|
          | Note: See MHI Help File for full command documentation. |
          +---------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                     ANALOG PHONE PORT                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects analog port during call answering   |
          |--------------+---------------------------------------------|
          |   Command    |                  Line Type                  |
          |--------------+---------------------------------------------|
          |     &L0      | Phone port 1                                |
          |--------------+---------------------------------------------|
          |     &L1      | Phone port 2                                |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                    B-CHANNEL DATA RATE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects data rate on B-channel              |
          |------------------------------------------------------------|
          |         Command          |            Function             |
          |--------------------------+---------------------------------|
          |           &E0            | 64Kbps                          |
          |--------------------------+---------------------------------|
          |           &E1            | 56Kbps                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      BUNDLE SELECTION                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Jn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects bundle options                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Jack Type                  |
          |--------------+---------------------------------------------|
          |    ? &J0     | Bundle connection is disabed                |
          |--------------+---------------------------------------------|
          |     &J1      | Bundle connection is enabled in answer mode |
          |              | only                                        |
          |--------------+---------------------------------------------|
          |     &J2      | Bundle connection is enabled in call mode   |
          |              | only                                        |
          |--------------+---------------------------------------------|
          |     &J3      | Bundle connection enabled in both           |
          |              | directions                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CONFIGURATION PROFILES                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &V [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Views profile settings                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &V0      | View current active settings                |
          |--------------+---------------------------------------------|
          |     &V1      | View profile 1                              |
          |--------------+---------------------------------------------|
          |     &V2      | View profile 2                              |
          |--------------+---------------------------------------------|
          |     &V3      | View profile 3                              |
          |--------------+---------------------------------------------|
          |     &V4      | View profile 4                              |
          |--------------+---------------------------------------------|
          |     &V5      | View factory default profiles               |
          |--------------+---------------------------------------------|
          |     &V6      | Views settings on phone line 1              |
          |--------------+---------------------------------------------|
          |     &V7      | Views settings on phone line 2              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      DATA COMPRESSION                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables V.42bis data compression   |
          |              | in V.120/X.75 mode                          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &K00     | V.42bis disabled                            |
          |--------------+---------------------------------------------|
          |     &K44     | V.42bis enabled                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    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                                   |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |             D-CHANNEL COMMUNICATION PROTOCOLS              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Pn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the communication protocol for      |
          |              | D-channel calls                             |
          |--------------+---------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |     ? P0     | Northern Telecom proprietary selection      |
          |--------------+---------------------------------------------|
          |      P1      | National ISDN 1 (1 SPID)                    |
          |--------------+---------------------------------------------|
          |      P2      | National ISDN 1 (2 SPID)                    |
          |--------------+---------------------------------------------|
          |      P4      | AT&T custom piont to point                  |
          |--------------+---------------------------------------------|
          |      P5      | AT&T custom piont to multipoint (1 SPID)    |
          |--------------+---------------------------------------------|
          |      P6      | AT&T custom piont to multipoint (2 SPID)    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            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                   |
          |--------------+---------------------------------------------|
          |      DL      | Re-dial last number                         |
          |--------------+---------------------------------------------|
          |      D+      | Second number string prefix. Used for       |
          |              | bundling or MPPP calls                      |
          |--------------+---------------------------------------------|
          |      DW      | Dialing resumed following dial tone         |
          |              | detection                                   |
          |--------------+---------------------------------------------|
          |      D,      | Dialing paused for amount of time specified |
          |              | in S6 register                              |
          |--------------+---------------------------------------------|
          |     DY0      | Number type unknown                         |
          |--------------+---------------------------------------------|
          |     DY1      | International number                        |
          |--------------+---------------------------------------------|
          |     DY2      | National number                             |
          |--------------+---------------------------------------------|
          |     DY3      | Network specific number                     |
          |--------------+---------------------------------------------|
          |     DY4      | Subscriber number                           |
          |--------------+---------------------------------------------|
          |     DY6      | Abbreviated number                          |
          |--------------+---------------------------------------------|
          |     DZ0      | Type of subaddress, NSAP with AFI=$50, IA5  |
          |              | characters                                  |
          |--------------+---------------------------------------------|
          |     DZ2      | Type of subaddress, user specified, IA5     |
          |              | characters                                  |
          |--------------+---------------------------------------------|
          |     DN0      | Numbering plan unknown                      |
          |--------------+---------------------------------------------|
          |     DN1      | ISDN/Telephony numbering plan (CCITT        |
          |              | E.164/E.163)                                |
          |--------------+---------------------------------------------|
          |     DN3      | Data numbering plan (CCITT X.121)           |
          |--------------+---------------------------------------------|
          |     DN8      | National standard numbering plan            |
          |--------------+---------------------------------------------|
          |     DN9      | Private numbering plan                      |
          |--------------+---------------------------------------------|
          |      D/      | Called pary subaddress delimiters           |
          |--------------+---------------------------------------------|
          |      DA      | Dials number on telephone line 1            |
          |--------------+---------------------------------------------|
          |      DB      | Dials number on telephone line 2            |
          |--------------+---------------------------------------------|
          |      DI      | Dials number for ISDN data call             |
          |--------------+---------------------------------------------|
          |    DN0=n     | User enters USA switches, first phone       |
          |              | number                                      |
          |--------------+---------------------------------------------|
          |    DN1=n     | User enters USA switches, second phone      |
          |              | number                                      |
          |--------------+---------------------------------------------|
          |     DSn      | Dial stored telephone number n. (n = 0-39)  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DIALING COMMANDS CALL TYPE                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &On [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the call type for conventional      |
          |              | dialing commands                            |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |     &O0      | Analog phone line 2                         |
          |--------------+---------------------------------------------|
          |     &O1      | ISDN mode                                   |
          |--------------+---------------------------------------------|
          |     &O2      | Analog phone line 1                         |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                         DTR SIGNAL                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the behavior of the DTR signal.    |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |      &D0      | DTR forced high.                           |
          |---------------+--------------------------------------------|
          |      &D1      | Device enters command mode when DTR goes   |
          |               | low.                                       |
          |---------------+--------------------------------------------|
          |     ? &D2     | Device hangs up and returns to command     |
          |               | mode on low DTR.                           |
          |---------------+--------------------------------------------|
          |      &D3      | Device resets on low DTR.                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Disables flow control options               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &H0      | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |    ? &H3     | RTS to CTS flow control disabled            |
          |--------------+---------------------------------------------|
          |     &H4      | XON/XOFF flow control disabled              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        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)     |
          |--------------+---------------------------------------------|
          |      H3      | Phone line 1 commanded to go on-hook        |
          |              | (hang-up)                                   |
          |--------------+---------------------------------------------|
          |      H4      | Phone line 2 commanded to go on-hook        |
          |              | (hang-up)                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                ISDN 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. |
          |      B must be followed by two digits.                     |
          |------------------------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |     B00      | X.75 Transparent                            |
          |--------------+---------------------------------------------|
          |     B01      | X.75 T.70                                   |
          |--------------+---------------------------------------------|
          |     B04      | BTX (Data X-J)                              |
          |--------------+---------------------------------------------|
          |     B10      | V.110 follows DTE speed (async). V.110      |
          |              | determined by in-band negotiation (sync)    |
          |--------------+---------------------------------------------|
          |     B13      | V.110 at 2400bps                            |
          |--------------+---------------------------------------------|
          |     B14      | V.110 at 4800bps                            |
          |--------------+---------------------------------------------|
          |     B15      | V.110 at 9600bps                            |
          |--------------+---------------------------------------------|
          |     B16      | V.110 at 14.4Kbps                           |
          |--------------+---------------------------------------------|
          |     B17      | V.110 at 19.2Kbps                           |
          |--------------+---------------------------------------------|
          |     B18      | V.110 at 38.4Kbps (sync only)               |
          |--------------+---------------------------------------------|
          |     B19      | V.110 at 57.6Kbps (sync only)               |
          |--------------+---------------------------------------------|
          |     B20      | V.120                                       |
          |--------------+---------------------------------------------|
          |     B40      | PPP async to sync conversion                |
          |--------------+---------------------------------------------|
          |     B41      | SLIP async to sync conversion               |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                          ON-LINE                           |
          |------------------------------------------------------------|
          | Type:         | Immediate                                  |
          |---------------+--------------------------------------------|
          | Format:       | AT [cmds] On [cmds]                        |
          |---------------+--------------------------------------------|
          | Description:  | Controls on-line command (data             |
          |               | transmission) state options.               |
          |------------------------------------------------------------|
          |      Note: The O command must be placed at the end of the  |
          |      command string.                                       |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |      O0       | On-line command mode with no retraining    |
          |               | enabled                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              REPEAT PREVIOUS COMMAND OR CALL               |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | A>                                          |
          |--------------+---------------------------------------------|
          | Description: | Repeats previous command once or last call  |
          |              | up to 9 times.                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      |   Reports product ID                        |
          |--------------+---------------------------------------------|
          |      I1      | Reports product information & ROM checksum  |
          |--------------+---------------------------------------------|
          |      I3      | Reports link status                         |
          |--------------+---------------------------------------------|
          |      I9      | Reports Microsoft PnP code                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RING VOLUME                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Nn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Controls ring volume                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      N0      | Audio ring disabled                         |
          |--------------+---------------------------------------------|
          |      N1      | Low volume setting                          |
          |--------------+---------------------------------------------|
          |      N2      | Medium volume setting                       |
          |--------------+---------------------------------------------|
          |     ? N3     | Highest volume setting                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             SELECT CALL PROGRESS RESULT CODES              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Xn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables selection of tone detection and     |
          |              | associated result code format options       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      X0      | Busy and dial tone detection disabled;      |
          |              | result codes 0 - 4 enabled.                 |
          |--------------+---------------------------------------------|
          |      X1      | Busy and dial tone detection disabled;      |
          |              | result codes 0 - 5, 10 - 47 enabled.        |
          |--------------+---------------------------------------------|
          |      X2      | Busy tone detection enabled, dial tone      |
          |              | detection disabled; result codes 0 - 6,     |
          |              |                                             |
          |              | 10 - 47 enabled                             |
          |--------------+---------------------------------------------|
          |      X3      | Busy tone detection disabled, dial tone     |
          |              | detection enabled; result codes 0 - 5,      |
          |              |                                             |
          |              | 7 - 47 enabled                              |
          |--------------+---------------------------------------------|
          |      X4      | Busy and dial tone detection enabled;       |
          |              | result codes 0 - 47 enabled.                |
          |--------------+---------------------------------------------|
          |      X5      | Busy and dial tone detection enabled;       |
          |              | result codes 0 - 47 enabled.                |
          |--------------+---------------------------------------------|
          |      X6      | Busy and dial tone detection enabled;       |
          |              | result codes 0 - 18, 35, 38 - 47 enabled.   |
          |--------------+---------------------------------------------|
          |      X7      | Busy and dial tone detection enabled;       |
          |              | result codes 0 - 18, 35, 38 - 47 enabled.   |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                         SOFT RESET                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Zn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Restores modem profiles previously saved in |
          |              | non-volatile RAM using the &W command.      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      Z0      | Restore setting 0                           |
          |--------------+---------------------------------------------|
          |      Z1      | Restore setting 1                           |
          |--------------+---------------------------------------------|
          |      Z2      | Restore setting 3                           |
          |--------------+---------------------------------------------|
          |      Z3      | Restore setting 4                           |
          |--------------+---------------------------------------------|
          |      Z4      | Restore factory default settings            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    STORE ACTIVE PROFILE                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Wn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Writes the values for the active profile    |
          |              | into the non-volatile RAM                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &W0      | Write the active profile to stored profile  |
          |              | 0                                           |
          |--------------+---------------------------------------------|
          |     &W1      | Write the active profile to stored profile  |
          |              | 1                                           |
          |--------------+---------------------------------------------|
          |     &W2      | Write the active profile to stored profile  |
          |              | 2                                           |
          |--------------+---------------------------------------------|
          |     &W3      | Write the active profile to stored profile  |
          |              | 3                                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Tn                               |
          |--------------+---------------------------------------------|
          | Description: | Selects test options                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &T9      | Initiates ISDN loopback test                |
          |--------------+---------------------------------------------|
          |     &T10     | Initiates ISDN loopback with self           |
          |              | diagnostic test                             |
          +------------------------------------------------------------+
       
                                 Special Commands
       
          +------------------------------------------------------------+
          |                       ADD-THRESHOLD                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] JAn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Default:     | 48                                          |
          |--------------+---------------------------------------------|
          | Unit:        | Kbps                                        |
          |--------------+---------------------------------------------|
          | Description: | Determines the add-threshold for MNPPP      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      B-CHANNEL NUMBER                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Zin=(phone # & subaddress)       |
          |--------------+---------------------------------------------|
          | Description: | Assigns the phone numbers for various       |
          |              | B-channel protocols. ZI? Displays B-channel |
          |              | phone numbers                               |
          |--------------+---------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |     &ZI0     | Assigns MSNs for X.75                       |
          |--------------+---------------------------------------------|
          |     &ZI1     | Assigns MSNs for V.110                      |
          |--------------+---------------------------------------------|
          |     &ZI2     | Assigns MSNs for V.120                      |
          |--------------+---------------------------------------------|
          |     &ZI3     | Assigns MSNs for PPP, MPPP                  |
          |--------------+---------------------------------------------|
          |     &ZI4     | Assigns MSNs for ISDN data, protocal        |
          |              | auto-detect                                 |
          |--------------+---------------------------------------------|
          |     &ZI6     | Assigns the phone numbers for analog phone  |
          |              | line 1                                      |
          |--------------+---------------------------------------------|
          |     &ZI7     | Assigns the phone numbers for analog phone  |
          |              | line 2                                      |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                   BOD ADD-PERSIST (MIN)                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] KAMn [cmds]                       |
          |--------------+---------------------------------------------|
          | Range:       | 0-63                                        |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Unit:        | 1min                                        |
          |--------------+---------------------------------------------|
          | Description: | Determines the add-persist time interval    |
          |              | for BOD                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      BOD ADD-PERSIST                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] KAxn [cmds]                       |
          |--------------+---------------------------------------------|
          | Range (n):   | 0-63                                        |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Unit (x):    | S=1sec, M=1min                              |
          |--------------+---------------------------------------------|
          | Description: | Determines the add-persist time interval    |
          |              | for BOD                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      BOD SUB-PERSIST                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] KSxn [cmds]                       |
          |--------------+---------------------------------------------|
          | Range (n):   | 0-63                                        |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Unit (x)::   | S=1sec, M=1min                              |
          |--------------+---------------------------------------------|
          | Description: | Determines the sub-persist time interval    |
          |              | for BOD                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CALL BUMPING                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CEn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables call bumping               |
          |--------------+---------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |     CE0      | Call bumping disabled                       |
          |--------------+---------------------------------------------|
          |     CE1      | Call bumping enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CALL RESUME                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CRn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 0-3                                         |
          |--------------+---------------------------------------------|
          | Description: | Resumes a previously suspended call; n is   |
          |              | the call identifier                         |
          |--------------+---------------------------------------------|
          | Note:        | Command for use in Europe                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CALL SUSPEND                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CSn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 0-3                                         |
          |--------------+---------------------------------------------|
          | Description: | Suspends a call; n is the call identifier   |
          |--------------+---------------------------------------------|
          | Note:        | Command for use in Europe                   |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                          CALLBACK                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *GCn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables callback function          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *GC1     | Callback function disabled                  |
          |--------------+---------------------------------------------|
          |     *GC2     | Callback function enabled                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CALLBACK LOCATION                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *HCn=x [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Assigns a storage location to callback      |
          |              | phone number x                              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *HC0     | Callback number stored in location 0        |
          |--------------+---------------------------------------------|
          |     *HC1     | Callback number stored in location 1        |
          |--------------+---------------------------------------------|
          |     *HC2     | Callback number stored in location 2        |
          |--------------+---------------------------------------------|
          |     *HC3     | Callback number stored in location 3        |
          |--------------+---------------------------------------------|
          |     *HC4     | Callback number stored in location 4        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CALLER ID                          |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *T  [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Recalls caller ID information               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      CHARACTER LENGTH                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the character length; including start, |
          |              | stop, and parity bit                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *C0      | 10-bit character length                     |
          |--------------+---------------------------------------------|
          |     *C1      | 11-bit character length                     |
          |--------------+---------------------------------------------|
          |     *C2      | 9-bit character length                      |
          |--------------+---------------------------------------------|
          |     *C3      | 8-bit character length                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                           CHARGE                           |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CH?  [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Displays accumulated charging unit of last  |
          |              | call                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      DATA PACKET SIZE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CLn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 0-2048                                      |
          |--------------+---------------------------------------------|
          | Unit:        | 8                                           |
          |--------------+---------------------------------------------|
          | Description: | Determines the maximum size of user data in |
          |              | a packet. CL? Queries current setting       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DIAL POINTER                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 0-39                                        |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the default dial pionter for telephone |
          |              | directory location n                        |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                     FIRMWARE DOWNLOAD                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] UPX [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Downloads firmware to the flash EPROM using |
          |              | X-modem protocol                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         LOOPBACK 4                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CPn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables loopback 4                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |     CP0      | Loopback 4 disabled                         |
          |--------------+---------------------------------------------|
          |     CP1      | Loopback 4 enabled                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       PASSWORD TABLE                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 0-39                                        |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Modifies user password table at location n  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               PREFIX NUMBER (INTERNATIONAL)                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CIn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Determines prefix number string to be added |
          |              | to the calling party number before          |
          |              | indicating to the DTE international number  |
          |              | type                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  PREFIX NUMBER (NATIONAL)                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] CNn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Determines prefix number string to be added |
          |              | to the calling party number before          |
          |              | indicating to the DTE national number type  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     SECURITY FUNCTIONS                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Gn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables type 2 security, sets password      |
          |              | check and callback security options         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *G3      | Type 2 security enabled with password check |
          |--------------+---------------------------------------------|
          |     *G4      | Type 2 security enabled with password check |
          |              | and callback                                |
          |--------------+---------------------------------------------|
          |     *G5      | Type 2 security enabled with password check |
          |              | and callback; remote site enters the        |
          |              | callback number                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        SPID NUMBER                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] SPIDn=(SPID #)                    |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Sets the SPID number for USA switches       |
          |------------------------------------------------------------|
          |         Command         |             Protocol             |
          |-------------------------+----------------------------------|
          |          SPID0          | Sets SPID number 1               |
          |-------------------------+----------------------------------|
          |          SPID1          | Sets SPID number 2               |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                       SUB-THRESHOLD                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] JSn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Default:     | 32                                          |
          |--------------+---------------------------------------------|
          | Unit:        | Kbps                                        |
          |--------------+---------------------------------------------|
          | Description: | Determines the sub-threshold for MNPPP      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    SUPERVISORY PASSWORD                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *HS  [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Modifies supervisory password. Dafault      |
          |              | password is NETGEAR                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       VIEW CALLBACK                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *VC  [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Views callback number table                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       VIEW PASSWORD                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *V  [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Views password table                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        WRITE NUMBER                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &ZOn=(phone # & subaddress)       |
          |--------------+---------------------------------------------|
          | Description: | Writes phone number to be used as the       |
          |              | calling party number. ZO? displays setting  |
          |--------------+---------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |     &ZOI     | Calling party number on ISDN interface      |
          |--------------+---------------------------------------------|
          |     &ZOA     | Calling party number on analog phone line 1 |
          |--------------+---------------------------------------------|
          |     &ZOB     | Calling party number on analog phone line 2 |
          +------------------------------------------------------------+
       
                               S(status) -REGISTERS
       
          +------------------------------------------------------------+
          |                   1TR6 OUTGOING SERVICES                   |
          |------------------------------------------------------------|
          | Type:         | Register                                   |
          |---------------+--------------------------------------------|
          | Format        | AT [cmds] S104x=n [cmds]                   |
          |---------------+--------------------------------------------|
          | Description:  | Determines outgoing service options.       |
          |------------------------------------------------------------|
          |  Command   |                   Function                    |
          |------------+-----------------------------------------------|
          |    x=0     | PHONE 2 service                               |
          |------------+-----------------------------------------------|
          |    x=2     | ISDN data service                             |
          |------------+-----------------------------------------------|
          |    x=3     | PHONE 1 service                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   ADD-THRESHOLD FOR BOD                    |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S126=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Kbps                                        |
          |--------------+---------------------------------------------|
          | Description: | Determines the add-threshold for BOD        |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |        B-CHANNEL 1 ACCUMULATED CHARGING UNIT (MSB)         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S120=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Determine the accumulated charging unit     |
          |              | (MSB) for B-channel 1                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |         B-CHANNEL 1 ACCUMULATED CHARGING UNIT(LSB)         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S121=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Determine the accumulated charging unit     |
          |              | (LSB) for B-channel 1                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |        B-CHANNEL 2 ACCUMULATED CHARGING UNIT (MSB)         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S122=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Determine the accumulated charging unit     |
          |              | (MSB) for B-channel 2                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |         B-CHANNEL 2 ACCUMULATED CHARGING UNIT(LSB)         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S123=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Determine the accumulated charging unit     |
          |              | (LSB) for B-channel 2                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           B-CHANNEL BUNDLING PROTOCOL SELECTION            |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S100=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets B-channel bundling protocol            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S100=0    | MLP                                         |
          |--------------+---------------------------------------------|
          |    S100=1    | Cfos (European models)                      |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S118                  |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S118n [cmds]                   |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Description:    | Enables/disables dial-in call; selects   |
          |                 | default B-channle speed, incoming call   |
          |                 | acceptance, and bearer service           |
          |------------------------------------------------------------|
          |    Bit    |  Value  |               Function               |
          |-----------+---------+--------------------------------------|
          |     0     |       0 | Dial-in call enabled                 |
          |           |         |                                      |
          |           |       1 | Dial-in call disabled                |
          |-----------+---------+--------------------------------------|
          |     1     |       0 | Not used                             |
          |-----------+---------+--------------------------------------|
          |     2     |       0 | 64Kbps ISDN B-channel speed          |
          |           |         |                                      |
          |           |       1 | 56Kbps ISDN B-channel speed          |
          |-----------+---------+--------------------------------------|
          |     3     |       0 | Not used                             |
          |-----------+---------+--------------------------------------|
          |     4     |       0 | 3.1KHz bearer service priority on    |
          |           |         | PHONE 2                              |
          |           |       1 |                                      |
          |           |         | Speech bearer service priority on    |
          |           |         | PHONE 2                              |
          |-----------+---------+--------------------------------------|
          |     5     |       0 | 3.1KHz bearer service priority on    |
          |           |         | PHONE 1                              |
          |           |       1 |                                      |
          |           |         | Speech bearer service priority on    |
          |           |         | PHONE 1                              |
          |-----------+---------+--------------------------------------|
          |     6     |       0 | Global call accepted                 |
          |           |         |                                      |
          |           |       1 | Global calls rejected if MSN is      |
          |           |         | unmatched                            |
          |-----------+---------+--------------------------------------|
          |     7     |       0 | Analog incoming calls enabled        |
          |           |         |                                      |
          |           |       1 | analog icoming calls disabled        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S119                  |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S119n [cmds]                   |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Description:    | Enables/disables callback function, DDI  |
          |                 | function, MSN matching; controls V.110   |
          |                 | speed                                    |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |     0     |     0 | Callback function disabled             |
          |           |       |                                        |
          |           |     1 | Callback function enabled              |
          |-----------+-------+----------------------------------------|
          |     1     |     0 | DDI point-to-point signaling disabled  |
          |           |       |                                        |
          |           |     1 | DDI point-to-point signaling enabled   |
          |-----------+-------+----------------------------------------|
          |     2     |     0 | DDI point-to-multipoint signaling      |
          |           |       | disabled                               |
          |           |     1 |                                        |
          |           |       | DDI point-to-multipoint signaling      |
          |           |       | enabled                                |
          |-----------+-------+----------------------------------------|
          |     3     |     0 | Inbound call ignored if MSN is         |
          |           |       | unmatched                              |
          |           |     1 |                                        |
          |           |       | Inbound call accepted if MSN is        |
          |           |       | unmatched                              |
          |-----------+-------+----------------------------------------|
          |     4     |     0 | V.110 user rate set to 19.2Kbps if DTE |
          |           |       | speed is greater than 19.2Kbps         |
          |           |     1 |                                        |
          |           |       | V.110 user rate set to 38.4Kbps if DTE |
          |           |       | speed is greater than 38.4Kbps         |
          |-----------+-------+----------------------------------------|
          |     5     |     0 | Normal MSN function enabled            |
          |           |       |                                        |
          |           |     1 | Treats number assigned by &ZI=n as a   |
          |           |       | subaddress, and matches it to the      |
          |           |       | called party subaddress                |
          |-----------+-------+----------------------------------------|
          |     7     |     0 | Not used                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S125                  |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S125n [cmds]                   |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Description:    | Controls sub-persist time interval       |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |     0     |     0 | Not used                               |
          |-----------+-------+----------------------------------------|
          |    1-6    |     ? | Controls sub-persist time interval;    |
          |           |       | further information not available      |
          |-----------+-------+----------------------------------------|
          |     7     |     0 | Sub-persist time interval in second    |
          |           |       | unit                                   |
          |           |     1 |                                        |
          |           |       | Sub-persist time interval in minute    |
          |           |       | unit                                   |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S15                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S23=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Determines parity, stop bits, character     |
          |              | length, and power-up profile                |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 0,1  |    00 | Parity even                                 |
          |      |       |                                             |
          |      |    01 | Parity odd                                  |
          |      |       |                                             |
          |      |    10 | Mark or No Parity                           |
          |------+-------+---------------------------------------------|
          |  2   |     0 | 1stop bit                                   |
          |      |       |                                             |
          |      |     1 | 2 stop bits                                 |
          |------+-------+---------------------------------------------|
          | 4,3  |    00 | 10-bit character length                     |
          |      |       |                                             |
          |      |    01 | 11-bit character length                     |
          |      |       |                                             |
          |      |    10 | 9-bit character length                      |
          |      |       |                                             |
          |      |    11 | 8-bit character length                      |
          |------+-------+---------------------------------------------|
          | 7-5  |    00 | Power on profile 1                          |
          |      |       |                                             |
          |      |    01 | Power on profile 2                          |
          |      |       |                                             |
          |      |    10 | Power on profile 3                          |
          |      |       |                                             |
          |      |    11 | Power on factory default profile            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S21                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S21=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Enables speaker, controls DTR/DCD/DSR       |
          |              | signals & low DTR action                    |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 0-2  |    00 | Speaker always off                          |
          |      |       |                                             |
          |      |    01 | Speaker on until carrier is detected        |
          |      |       |                                             |
          |      |    10 | Speaker always on                           |
          |------+-------+---------------------------------------------|
          |  3   |     0 | DSR forced high                             |
          |      |       |                                             |
          |      |     1 | DSR normal                                  |
          |------+-------+---------------------------------------------|
          |  4   |     0 | DCD forced high                             |
          |      |       |                                             |
          |      |     1 | DCD normal                                  |
          |------+-------+---------------------------------------------|
          |  5   |     0 | DCD forced high                             |
          |      |       |                                             |
          |      |     1 | DCD normal                                  |
          |------+-------+---------------------------------------------|
          | 6-7  |    00 | DTR assumed on                              |
          |      |       |                                             |
          |      |    01 | DTR toggle causes default number to dial    |
          |      |       |                                             |
          |      |    10 | Hang up and return to command mode on low   |
          |      |       | DTR                                         |
          |      |    11 |                                             |
          |      |       | Hang up and reset to profile 0 on low DTR   |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S23                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S23=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Select command echo, automode and         |
          |                | extended result code format.              |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |    0     |     0 | Command echo enabled                    |
          |          |       |                                         |
          |          |     1 | Command echo disabled                   |
          |----------+-------+-----------------------------------------|
          |    1     |     0 | Not used                                |
          |----------+-------+-----------------------------------------|
          |    2     |    00 | Insertion not allowed during phone call |
          |          |       |                                         |
          |          |    01 | Insertion allowed during phone call     |
          |----------+-------+-----------------------------------------|
          |   3-5    |   000 | Busy and dial tone detection disabled;  |
          |          |       | result codes 0 - 4 enabled.             |
          |          |   001 |                                         |
          |          |       | Busy and dial tone detection disabled;  |
          |          |   010 | result codes 0 - 5, 10 - 47 enabled.    |
          |          |       |                                         |
          |          |   011 | Busy tone detection enabled, dial tone  |
          |          |       | detection disabled; result codes 0 - 6, |
          |          |   100 |                                         |
          |          |       | 10 - 47 enabled.                        |
          |          |       |                                         |
          |          |       | Busy tone detection disabled, dial tone |
          |          |       | detection enabled; result codes 0 - 5,  |
          |          |       |                                         |
          |          |       | 7 - 47 enabled.                         |
          |          |       |                                         |
          |          |       | Busy and dial tone detection enabled;   |
          |          |       | result codes 0 - 47 enabled.            |
          |----------+-------+-----------------------------------------|
          |    6     |     0 | Result codes displayed in numeric       |
          |          |       | format                                  |
          |          |     1 |                                         |
          |          |       | Result codes displayed in verbose       |
          |          |       | format                                  |
          |----------+-------+-----------------------------------------|
          |    7     |     0 | Not used                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S24                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S24=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Selects ring volume, speaker control (S21 |
          |                | bits 1-2) ignore function, and speaker    |
          |                | volume                                    |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |   0,1    |    00 | Ring volume at minimum                  |
          |          |       |                                         |
          |          |    01 | Ring volume increased by 1 decimal      |
          |          |       |                                         |
          |          |    11 | Ring volume increased by 2 decimals     |
          |----------+-------+-----------------------------------------|
          |    2     |     0 | Ignore S21 bits 1-2 speaker enable when |
          |          |       | phone 1 keypad is dialed                |
          |          |     1 |                                         |
          |          |       | Do not ignore S21 bits 1-2 speaker      |
          |          |       | enable when phone 1 keypad is dialed    |
          |----------+-------+-----------------------------------------|
          |    3     |     0 | Ignore S21 bits 1-2 speaker enable when |
          |          |       | phone 2 keypad is dialed                |
          |          |     1 |                                         |
          |          |       | Do not ignore S21 bits 1-2 speaker      |
          |          |       | enable when phone 2 keypad is dialed    |
          |----------+-------+-----------------------------------------|
          |   5,4    |     0 | Speaker volume control in increments of |
          |          |       | 16                                      |
          |----------+-------+-----------------------------------------|
          |   6,7    |     0 | Not used                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S35                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S35=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Enables default dail, extended numeric    |
          |                | result codes                              |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |   0-3    |     0 | Not used                                |
          |----------+-------+-----------------------------------------|
          |    4     |     0 | Do not dial default number when         |
          |          |       | Data/Voice is pressed                   |
          |          |     1 |                                         |
          |          |       | Dials default number when Data/Voice is |
          |          |       | pressed                                 |
          |----------+-------+-----------------------------------------|
          |   6-5    |     0 | Not used                                |
          |----------+-------+-----------------------------------------|
          |    7     |     0 | Extended numeric result codes in error  |
          |          |       | correction mode are disabled            |
          |          |     1 |                                         |
          |          |       | Extended numeric result codes in error  |
          |          |       | correction mode are enabled             |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S38                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S38=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Enables repeat dialing, DCD toggle        |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |    0     |     0 | Repeatedly dials default number         |
          |          |       |                                         |
          |          |     1 | Does not repeatedly dial default number |
          |----------+-------+-----------------------------------------|
          |    1     |     0 | Not used                                |
          |----------+-------+-----------------------------------------|
          |    3     |     0 | DCD toggle does not follow UNIX         |
          |          |       | standard                                |
          |          |     1 |                                         |
          |          |       | DCD toggle follows UNIX standard. DCD   |
          |          |       | high before connect message is sent,    |
          |          |       | DCD off after last DCE response is sent |
          |----------+-------+-----------------------------------------|
          |   4-7    |     0 | Not used                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S40                   |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S40=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Description:    | Enables result code display in answer    |
          |                 | mode                                     |
          |------------------------------------------------------------|
          |    Bit    | Value  |               Function                |
          |-----------+--------+---------------------------------------|
          |     0     |      0 | Not used                              |
          |-----------+--------+---------------------------------------|
          |     1     |      0 | Result code display in answer mode    |
          |           |        | enabled                               |
          |           |      1 |                                       |
          |           |        | Result code display in answer mode    |
          |           |        | disabled                              |
          |-----------+--------+---------------------------------------|
          |    2-7    |      0 | Not used                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S41                   |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S41=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Description:    | Enables CCITT signals 140 & 141 on       |
          |                 | EIA-232D interface                       |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |    0-2    |     0 | Not used                               |
          |-----------+-------+----------------------------------------|
          |     3     |     0 | CCITT signals 140 & 141 on EIA-232D    |
          |           |       | interface disabled                     |
          |           |     1 |                                        |
          |           |       | CCITT signals 140 & 141 on EIA-232D    |
          |           |       | interface enabled                      |
          |-----------+-------+----------------------------------------|
          |    4-7    |     0 | Not used                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S42                   |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S42=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Description:    | Controls escape sequence Data/Voice      |
          |                 | button, and <RINGING> result code        |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |     0     |     0 | Not used                               |
          |-----------+-------+----------------------------------------|
          |     3     |     0 | Escape code sequence in answer mode    |
          |           |       | enabled                                |
          |           |     1 |                                        |
          |           |       | Escape code sequence in answer mode    |
          |           |       | disabled                               |
          |-----------+-------+----------------------------------------|
          |     4     |     0 | Not used                               |
          |-----------+-------+----------------------------------------|
          |     5     |     0 | Voice/Data button enabled              |
          |           |       |                                        |
          |           |     1 | Voice/Data button disabled             |
          |-----------+-------+----------------------------------------|
          |     6     |     0 | Ringing result code enabled            |
          |           |       |                                        |
          |           |     1 | Ringing result code disabled           |
          |-----------+-------+----------------------------------------|
          |     7     |     0 | Not used                               |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S44                   |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S44=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Description:    | Controls escape sequence Data/Voice      |
          |                 | button, and <RINGING> result code        |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |     0     |     0 | Not used                               |
          |-----------+-------+----------------------------------------|
          |     3     |     0 | ATDSn does not initiate auto-dial if   |
          |           |       | the stored numbers cinsecutively until |
          |           |     1 | connection is made                     |
          |           |       |                                        |
          |           |       | ATDSn does not initiates auto-dial if  |
          |           |       | the stored numbers cinsecutively until |
          |           |       | connection is made                     |
          |-----------+-------+----------------------------------------|
          |     4     |     0 | DSR does not follow DTR                |
          |           |       |                                        |
          |           |     1 | DSR follows DTR                        |
          |-----------+-------+----------------------------------------|
          |    5-7    |     0 | Not used                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S80                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S80=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Controls sending of low-layer             |
          |                | compatibility information                 |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |   0-3    |     0 | Not used                                |
          |----------+-------+-----------------------------------------|
          |    4     |     0 | Does not send low-layer compatibility   |
          |          |       | information for PHONE 2                 |
          |          |     1 |                                         |
          |          |       | Send low-layer compatibility            |
          |          |       | information for PHONE 2                 |
          |----------+-------+-----------------------------------------|
          |    5     |     0 | Not used                                |
          |----------+-------+-----------------------------------------|
          |    6     |     0 | Does not send low-layer compatibility   |
          |          |       | information for ISDN call               |
          |          |     1 |                                         |
          |          |       | Send low-layer compatibility informatin |
          |          |       | for ISDN call                           |
          |----------+-------+-----------------------------------------|
          |    7     |     0 | Does not send low-layer compatibility   |
          |          |       | information for PHONE 1                 |
          |          |     1 |                                         |
          |          |       | Send low-layer compatibility            |
          |          |       | information for PHONE 1                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S83                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S83=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Controls loopback and dial commands       |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |    0     |     0 | Loopback 4 test disabled                |
          |          |       |                                         |
          |          |     1 | Lopback 4 test enabled                  |
          |----------+-------+-----------------------------------------|
          |    2     |     0 | ISDN without V.42bis enabled            |
          |          |       |                                         |
          |          |     1 | ISDN with 42bis enabled                 |
          |----------+-------+-----------------------------------------|
          |    3     |     0 | Not used                                |
          |----------+-------+-----------------------------------------|
          |   4-5    |    00 | ATD, ATDP, and ATDT commands are mapped |
          |          |       | to ATDM                                 |
          |          |    01 |                                         |
          |          |       | ATD, ATDP, and ATDT commands are mapped |
          |          |    10 | to ATDI                                 |
          |          |       |                                         |
          |          |       | ATD, ATDP, and ATDT commands are mapped |
          |          |       | to ATDB                                 |
          |----------+-------+-----------------------------------------|
          |   6-7    |     0 | Not used                                |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S84                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S84=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Controls S-register display format,       |
          |                | caller ID, and phone priority             |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |   0-2    |     0 | Not used                                |
          |----------+-------+-----------------------------------------|
          |    3     |     0 | S-register not displayed in hexidecimal |
          |          |       | format                                  |
          |          |     1 |                                         |
          |          |       | S-register displayed in hexidecimal     |
          |          |       | format                                  |
          |----------+-------+-----------------------------------------|
          |    4     |     0 | Indicates caller ID after first ring    |
          |          |       | message                                 |
          |          |     1 |                                         |
          |          |       | Caller ID disabled                      |
          |----------+-------+-----------------------------------------|
          |    5     |     0 | PHONE 1 given call priority             |
          |          |       |                                         |
          |          |     1 | PHONE 2 given call priority             |
          |----------+-------+-----------------------------------------|
          |   6-7    |     0 | Not used                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S85                   |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S85n [cmds]                    |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Description:    | Controls DCA function, add-persist time  |
          |                 | interval                                 |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |     0     |     0 | DCA function enabled                   |
          |           |       |                                        |
          |           |     1 | DCA function disabled                  |
          |-----------+-------+----------------------------------------|
          |    1-6    |     ? | Controls add-persist time interval;    |
          |           |       | further information not available      |
          |-----------+-------+----------------------------------------|
          |     7     |     0 | Add-persist time interval in secondits |
          |           |       |                                        |
          |           |     1 | Add-persist time interval in minute    |
          |           |       | unite                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S87                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S87n [cmds]                     |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Enables/disables bundle connection        |
          |------------------------------------------------------------|
          |   Bit    | Value  |                Function                |
          |----------+--------+----------------------------------------|
          |   0-4    |      0 | Not used                               |
          |----------+--------+----------------------------------------|
          |   5,6    |     00 | Bundle mode connection disabled        |
          |          |        |                                        |
          |          |     01 | Bundle connection enabled in answer    |
          |          |        | mode only                              |
          |          |     11 |                                        |
          |          |        | Bundle connection enabled in call mode |
          |          |     10 | only                                   |
          |          |        |                                        |
          |          |        | Bundle connection enabled in both      |
          |          |        | directions                             |
          |----------+--------+----------------------------------------|
          |    7     |      0 | Not used                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S89                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S89n [cmds]                     |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Enables/disables metering pulse           |
          |------------------------------------------------------------|
          |   Bit    |  Value  |               Function                |
          |----------+---------+---------------------------------------|
          |   0-4    |       0 | Not used                              |
          |----------+---------+---------------------------------------|
          |    5     |       0 | Metering pulse disabled on PHONE 2    |
          |          |         |                                       |
          |          |       1 | Metering pulse enabled on PHONE 2     |
          |----------+---------+---------------------------------------|
          |    6     |       0 | Metering pulse disabled on PHONE 1    |
          |          |         |                                       |
          |          |       1 | Metering pulse enabled on PHONE 1     |
          |----------+---------+---------------------------------------|
          |    7     |       0 | Not used                              |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                D-CHANNEL PROTOCOL SELECTION                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S86=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum allowable 56K downstream   |
          |              | rate attempted during handshake process.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S86=0     | Northern telecom proprietary ISDN           |
          |--------------+---------------------------------------------|
          |    S86=1     | National ISDN 1                             |
          |--------------+---------------------------------------------|
          |    S86=2     | National ISDN 2                             |
          |--------------+---------------------------------------------|
          |    S86=3     | Reserved                                    |
          |--------------+---------------------------------------------|
          |    S86=4     | AT&T proprietary point-to-piont             |
          |--------------+---------------------------------------------|
          |    S86=5     | AT&T proprietary point-to-multipoint        |
          |--------------+---------------------------------------------|
          |    S86=6     | AT&T custom point-to-multipoint             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       DTE LINE SPEED                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S20=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum allowable data exchange    |
          |              | rate attempted during handshake process.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S20=0     | 230.4Mbps                                   |
          |--------------+---------------------------------------------|
          |    S20=1     | 115.2Mbps                                   |
          |--------------+---------------------------------------------|
          |    S20=3     | 57.6Kbps                                    |
          |--------------+---------------------------------------------|
          |    S20=5     | 38.4bps                                     |
          |--------------+---------------------------------------------|
          |    S20=5     | 19.2bps                                     |
          |--------------+---------------------------------------------|
          |    S20=9     | 9600bps                                     |
          |--------------+---------------------------------------------|
          |    S20=11    | 4800bps                                     |
          |--------------+---------------------------------------------|
          |    S20=12    | 2400bps                                     |
          |--------------+---------------------------------------------|
          |    S20=13    | 19.2Kbps                                    |
          |--------------+---------------------------------------------|
          |    S20=14    | 460.8Mbps                                   |
          |--------------+---------------------------------------------|
          |    S20=15    | 921.6Mbps                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      FIXED BAUD RATE                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S18=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the fixed baud rate at idle            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S18=0     | 230.4Mbps                                   |
          |--------------+---------------------------------------------|
          |    S18=1     | 115.2Mbps                                   |
          |--------------+---------------------------------------------|
          |    S18=3     | 57.6Kbps                                    |
          |--------------+---------------------------------------------|
          |    S18=5     | 38.4bps                                     |
          |--------------+---------------------------------------------|
          |    S18=5     | 19.2bps                                     |
          |--------------+---------------------------------------------|
          |    S18=9     | 9600bps                                     |
          |--------------+---------------------------------------------|
          |    S18=11    | 4800bps                                     |
          |--------------+---------------------------------------------|
          |    S18=12    | 2400bps                                     |
          |--------------+---------------------------------------------|
          |    S18=13    | 19.2Kbps                                    |
          |--------------+---------------------------------------------|
          |    S18=14    | 460.8Mbps                                   |
          |--------------+---------------------------------------------|
          |    S18=15    | 921.6Mbps                                   |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S27 [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Displays the current flow control           |
          |--------------+---------------------------------------------|
          |    Value     |                   Meaning                   |
          |--------------+---------------------------------------------|
          |      0       | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |      3       | RTS/CTS flow control enabled                |
          |--------------+---------------------------------------------|
          |      4       | XON/XOFF flow control enabled               |
          |--------------+---------------------------------------------|
          |      5       | Reserved                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               FLOW CONTROL CHARACTER - XOFF                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S32=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XOFF   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FLOW CONTROL CHARACTER - XON                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S31=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XON    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   HOOK FLASH DETECT TIME                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S56=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 10ms                                        |
          |--------------+---------------------------------------------|
          | Description: | Determines the hook flash detect time for   |
          |              | analog adapter                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 I-FIELD DATA LENGTH (LSB)                  |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S115=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets I-field data length (LSB)              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 I-FIELD DATA LENGTH (MSB)                  |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S114=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets I-field data length (MSB)              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     IP PACKET INTERVAL                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S124=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1sec                                        |
          |--------------+---------------------------------------------|
          | Description: | Empties IP packet interval for PPP          |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                  ISDN B-CHANNEL PROTOCOL                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S82=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Determines ISDN B channel protocol          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S82=60    | V.120 at 64Kbps                             |
          |--------------+---------------------------------------------|
          |    S82=61    | V.120 at 56Kbps                             |
          |--------------+---------------------------------------------|
          |    S82=62    | X.75 at 64Kbps transparent                  |
          |--------------+---------------------------------------------|
          |    S82=63    | X.75 at 56Kbps transparent                  |
          |--------------+---------------------------------------------|
          |    S82=64    | X.75 at 64Kbps T.70                         |
          |--------------+---------------------------------------------|
          |    S82=65    | X.75 at 56Kbps T.70                         |
          |--------------+---------------------------------------------|
          |    S82=72    | V.110 at 64Kbps                             |
          |--------------+---------------------------------------------|
          |    S82=73    | V.110 at 56Kbps                             |
          |--------------+---------------------------------------------|
          |    S82=74    | PPP async to sync 64Kbps                    |
          |--------------+---------------------------------------------|
          |    S82=75    | PPP async to sync 56Kbps                    |
          |--------------+---------------------------------------------|
          |    S82=76    | SLIP to sync HDLC conversion at 64Kbps      |
          |--------------+---------------------------------------------|
          |    S82=77    | SLIP to sync HDLC conversion at 56Kbps      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             ISDN B-CHANNEL PROTOCOL (OUTGOING)             |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S102=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Determines outgoing ISDN B-channel protocol |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   S102=60    | V.120 at 64Kbps                             |
          |--------------+---------------------------------------------|
          |   S102=61    | V.120 at 56Kbps                             |
          |--------------+---------------------------------------------|
          |   S102=62    | X.75 at 64Kbps transparent                  |
          |--------------+---------------------------------------------|
          |   S102=63    | X.75 at 56Kbps transparent                  |
          |--------------+---------------------------------------------|
          |   S102=64    | X.75 at 64Kbps T.70                         |
          |--------------+---------------------------------------------|
          |   S102=65    | X.75 at 56Kbps T.70                         |
          |--------------+---------------------------------------------|
          |   S102=72    | V.110 at 64Kbps                             |
          |--------------+---------------------------------------------|
          |   S102=73    | V.110 at 56Kbps                             |
          |--------------+---------------------------------------------|
          |   S102=74    | PPP async to sync 64Kbps                    |
          |--------------+---------------------------------------------|
          |   S102=75    | PPP async to sync 56Kbps                    |
          |--------------+---------------------------------------------|
          |   S102=76    | SLIP to sync HDLC conversion at 64Kbps      |
          |--------------+---------------------------------------------|
          |   S102=77    | SLIP to sync HDLC conversion at 56Kbps      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    PHONE NUMBER POINTER                    |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S29=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-39                                        |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Sets the default phone number pointer       |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                       REGISTER S108                        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S108x=n [cmds]                    |
          |--------------+---------------------------------------------|
          | Description: | Determines device mode, stop bits, parity,  |
          |              | speed. Values in hexidecimal                |
          |------------------------------------------------------------|
          |  Command   |                   Function                    |
          |------------+-----------------------------------------------|
          |    x=0     | PHONE 2 service                               |
          |------------+-----------------------------------------------|
          |    x=2     | ISDN data service                             |
          |------------+-----------------------------------------------|
          |    x=3     | PHONE 1 service                               |
          |------------+-----------------------------------------------|
          |   Value    |                   Function                    |
          |   (hex)    |                                               |
          |------------------------------------------------------------|
          |      00      | Default values: 64kbps. 8 data bits, 1 stop |
          |              | bit, no parity, no high-layer compatibility |
          |--------------+---------------------------------------------|
          |      01      | ISDN mode                                   |
          |--------------+---------------------------------------------|
          |      02      | Analog mode, fax group 3                    |
          |--------------+---------------------------------------------|
          |      03      | Data mode                                   |
          |--------------+---------------------------------------------|
          |      04      | BTX mode, fax group 3,4                     |
          |--------------+---------------------------------------------|
          |      08      | Even parity                                 |
          |--------------+---------------------------------------------|
          |      10      | 2 stop bits                                 |
          |--------------+---------------------------------------------|
          |      20      | 7 data bits                                 |
          |--------------+---------------------------------------------|
          |      28      | Teletex service                             |
          |--------------+---------------------------------------------|
          |      31      | Teletex service                             |
          |--------------+---------------------------------------------|
          |      32      | Information interworking for video          |
          |--------------+---------------------------------------------|
          |      35      | Teletex service                             |
          |--------------+---------------------------------------------|
          |      38      | message handling systems                    |
          |--------------+---------------------------------------------|
          |      40      | 38.4Kbps async mode                         |
          |--------------+---------------------------------------------|
          |      41      | OSI application                             |
          |--------------+---------------------------------------------|
          |    A0, C0    | V.110 sync mode at 1200bps                  |
          |--------------+---------------------------------------------|
          |    A3, C3    | 2400bps                                     |
          |--------------+---------------------------------------------|
          |    A4, C4    | 4800bps                                     |
          |--------------+---------------------------------------------|
          |    A5, C5    | 9600bps                                     |
          |--------------+---------------------------------------------|
          |    A6, C6    | 14.4Kbps                                    |
          |--------------+---------------------------------------------|
          |    A7, C7    | 19.2Kbps                                    |
          |--------------+---------------------------------------------|
          |      A8      | 48.0Kbps                                    |
          |--------------+---------------------------------------------|
          |      A9      | 56.0Kbps                                    |
          |--------------+---------------------------------------------|
          |      AA      | 56.oKbps                                    |
          |--------------+---------------------------------------------|
          |      AF      | In-band negotiation                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     SECURITY CALLBACK                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S64=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1sec                                        |
          |--------------+---------------------------------------------|
          | Description: | Sets security callback timer                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   SUB-THRESHOLD FOR BOD                    |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S127=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Kbps                                        |
          |--------------+---------------------------------------------|
          | Description: | Determines the sub-threshold for BOD        |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S16=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-125                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls loopback tests, analog, digital    |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Local analog loopback not in progress       |
          |      |       |                                             |
          |      |     1 | Local analog loopback in progress           |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Local digital loopback not in progress      |
          |      |       |                                             |
          |      |     1 | Local digital loopback in progress          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      V.110 USER RATE                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S117=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Sets V.110 user rate                        |
          +------------------------------------------------------------+