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       # MAGICXPRESS
       
          MX56V - X
       
          Card Type              Modem/Fax card                          
          Chip Set               Unidentified                            
          I/O Options            Line out, phone in, microphone in,      
                                 speaker out                             
          Maximum Modem Rate     56Kbps (receive only), 33.6Kbps         
          Maximum Fax Rate       14.4Kbps                                
          Data Modulation        Bell 103A/212A                          
          Protocol                                                       
                                 ITU-T V34, V.32bis, V.32, V.22bis,      
                                 V.23, V.22, V.21                        
          Fax Modulation         ITU-T V.17, V.27ter, V.29, T.4, T.30    
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
          Fax Class              Class I & II                            
          Data Bus               8-bit ISA                               
          Card Size              Half-length                             
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function       | Label  |   Function    |   Label    |
          |------------------------------------------------------------|
          | Line out                 |   CN1    | Speaker out   | CN3  |
          |--------------------------+----------+---------------+------|
          | Phone in                 |   CN2    | Microphone in | CN4  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    SERIAL PORT ADDRESS                     |
          |------------------------------------------------------------|
          |        Setting         |   JP1/A   |   JP1/B   |   JP1/C   |
          |------------------------+-----------+-----------+-----------|
          |      COM1 (3F8h)       |  Closed   |  Closed   |  Closed   |
          |------------------------+-----------+-----------+-----------|
          |      COM2 (2F8h)       |   Open    |  Closed   |  Closed   |
          |------------------------+-----------+-----------+-----------|
          |      COM3 (3E8h)       |  Closed   |   Open    |  Closed   |
          |------------------------+-----------+-----------+-----------|
          |      COM4 (2E8h)       |   Open    |   Open    |  Closed   |
          |------------------------+-----------+-----------+-----------|
          | Plug and play enabled  |   Open    |   Open    |   Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         INTERRUPT                          |
          |------------------------------------------------------------|
          | Setting  | JP2/A  | JP2/B |   JP2/C    |   JP2/D   | JP2/E |
          |----------+--------+-------+------------+-----------+-------|
          |   IRQ2   |  Open  | Open  |    Open    |   Open    |Closed |
          |----------+--------+-------+------------+-----------+-------|
          |   IRQ3   |  Open  | Open  |    Open    |     Closed| Open  |
          |----------+--------+-------+------------+-----------+-------|
          |   IRQ4   |  Open  | Open  |     Closed |   Open    | Open  |
          |----------+--------+-------+------------+-----------+-------|
          |   IRQ5   |  Open  |Closed |    Open    |   Open    | Open  |
          |----------+--------+-------+------------+-----------+-------|
          |   IRQ7   | Closed | Open  |    Open    |   Open    | Open  |
          |------------------------------------------------------------|
          |Note: Interrupt must be set to IRQ3 to enable plug and play.|
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, ‘+++’, A/                                              |
          |------------------------------------------------------------|
          | A, E, F, H, M, O, P, T, V                                  |
          |------------------------------------------------------------|
          | &C, &G, &T, &W, &Z                                         |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S18, S25, S38                                              |
          |------------------------------------------------------------|
          |                                                            |
          |------------------------------------------------------------|
          | Note: See MHI Help File for full command documentation.    |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                  COMMUNICATION PROTOCOLS                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Bn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the communication protocol for data |
          |              | calls                                       |
          |------------------------------------------------------------|
          |      Note: The B command allows the simultaneous selection |
          |      of more than one suffix, enabling multiple protocols. |
          |------------------------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |      B0      | ITU-T V.25 at 300 or 1200bps                |
          |--------------+---------------------------------------------|
          |      B1      | Bell 300 or 212A at 300 or 1200bps          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            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                         |
          |--------------+---------------------------------------------|
          |     í DP     | Pulse dialing enabled                       |
          |--------------+---------------------------------------------|
          |      DR      | Answer mode enabled; originate mode         |
          |              | disabled following handshake initiation.    |
          |--------------+---------------------------------------------|
          |     DS=n     | Dial stored telephone number n              |
          |--------------+---------------------------------------------|
          |      DT      | Tone dialing enabled/Pulse dialing disabled |
          |--------------+---------------------------------------------|
          |      DW      | Dialing resumed following dial tone         |
          |              | detection                                   |
          |--------------+---------------------------------------------|
          |      D,      | Dialing paused for amount of time specified |
          |              | in S8 register                              |
          |--------------+---------------------------------------------|
          |      D!      | Flash function initiated. Modem commanded   |
          |              | to go off-hook for specified time before    |
          |              | returning on-hook.                          |
          |--------------+---------------------------------------------|
          |      D@      | Wait for Quite Answer function enabled.     |
          |              | Modem waits until a "quiet answer," a       |
          |              | ring-back signal followed by silence up to  |
          |              | the time specified in S7, is received prior |
          |              | to executing the rest of the dial string.   |
          |--------------+---------------------------------------------|
          |      D;      | Modem returned to idle state after dialing. |
          |              | The semicolon can only be placed at the end |
          |              | of the dial command.                        |
          |--------------+---------------------------------------------|
          |      D/      | Delays for 125 msec. before proceeding with |
          |              | dial                                        |
          |--------------+---------------------------------------------|
          |    D#,D*     | Extended touch tone pad tones               |
          |--------------+---------------------------------------------|
          |      D$      | Displays a list of dial commands            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports four digit product code             |
          |--------------+---------------------------------------------|
          |      I1      | Reports ROM checksum                        |
          |--------------+---------------------------------------------|
          |      I2      | Reports results of RAM self test            |
          |--------------+---------------------------------------------|
          |      I3      | Reports product type                        |
          |--------------+---------------------------------------------|
          |      I4      | Reports current modem settings              |
          |--------------+---------------------------------------------|
          |      I5      | Reports NVRAM settings                      |
          |--------------+---------------------------------------------|
          |      I6      | Reports link diagnostics                    |
          |--------------+---------------------------------------------|
          |      I7      | Reports product configuration               |
          |--------------+---------------------------------------------|
          |      I9      | Reports plug and play information           |
          |--------------+---------------------------------------------|
          |     I11      | Reports call statistics                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       SPEAKER VOLUME                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Ln [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Controls speaker volume                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      L0      | Low volume setting                          |
          |--------------+---------------------------------------------|
          |      L1      | Low volume setting                          |
          |--------------+---------------------------------------------|
          |     í L2     | Medium volume setting                       |
          |--------------+---------------------------------------------|
          |      L3      | Highest volume setting                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RESULT CODES                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Qn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables modem to send result codes to the   |
          |              | DTE                                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      Q0      | Result code sending enabled                 |
          |--------------+---------------------------------------------|
          |      Q1      | Result code sending disabled                |
          |--------------+---------------------------------------------|
          |      Q2      | Displays result codes when in answer mode   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             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, & 13 - 220 enabled. |
          |--------------+---------------------------------------------|
          |      X2      | Busy tone detection disabled, dial tone     |
          |              | detection enabled; result codes 0 - 6, 10,  |
          |              | & 13 - 220 enabled.                         |
          |--------------+---------------------------------------------|
          |      X3      | Busy tone detection enabled, dial tone      |
          |              | detection disabled; result codes 0 - 5,7 -  |
          |              | 8, 10, & 13 - 220 enabled.                  |
          |--------------+---------------------------------------------|
          |      X4      | Busy and dial tone detection enabled;       |
          |              | result codes 0 -8, & 10 - 220 enabled.      |
          |--------------+---------------------------------------------|
          |      X5      | Busy tone detection enabled, dial tone      |
          |              | detection disabled, result codes 0 - 5, 7 - |
          |              | 8, & 10 - 220 enabled                       |
          |--------------+---------------------------------------------|
          |      X6      | Busy and dial tone detection enabled,       |
          |              | result codes 0 -8, & 11 - 220 enabled       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                RESET DEFUALT CONFIGURATION                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Yn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Tells the modem which profile to use the    |
          |              | next time the modem is turned on or reset   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      Y0      | NVRAM configuration 0                       |
          |--------------+---------------------------------------------|
          |      Y1      | NVRAM configuration 1                       |
          |--------------+---------------------------------------------|
          |      Y2      | Factory configuration 0                     |
          |--------------+---------------------------------------------|
          |      Y3      | Factory configuration 1                     |
          |--------------+---------------------------------------------|
          |      Y4      | Factory configuration 2                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         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 NVRAM setting selected by Y command |
          |--------------+---------------------------------------------|
          |      Z1      | Restore NVRAM setting 0                     |
          |--------------+---------------------------------------------|
          |      Z2      | Restore NVRAM setting 1                     |
          |--------------+---------------------------------------------|
          |      Z3      | Restore factory default setting 0 (&F0)     |
          |--------------+---------------------------------------------|
          |      Z4      | Restore factory default setting 1 (&F1)     |
          |--------------+---------------------------------------------|
          |      Z5      | Restore factory default setting 2 (&F2)     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          COMMANDS                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &$ [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays a list of ampersand commands       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      MODIFY RESPONSES                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &An [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Determines whether the modem sends MNP      |
          |              | responses                                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &A0      | ARQ result codes disabled                   |
          |--------------+---------------------------------------------|
          |     &A1      | ARQ result codes enabled                    |
          |--------------+---------------------------------------------|
          |     &A2      | Append additional V.32 indicator in result  |
          |              | codes                                       |
          |--------------+---------------------------------------------|
          |     &A3      | Append additional LAPM/MNP/NONE and         |
          |              | V.42bis/MNP5 in result codes                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      SERIAL PORT RATE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls DTE interface speed                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &B0      | Change serial port speed to match rate of   |
          |              | connection                                  |
          |--------------+---------------------------------------------|
          |    í &B1     | Serial port speed is independent of         |
          |              | connection speed                            |
          |--------------+---------------------------------------------|
          |     &B2      | In answer mode, serial port speed is fixed  |
          |              | only for ARQ calls                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DATA TERMINAL READY                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls DTR operations                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &D0      | DTR override                                |
          |--------------+---------------------------------------------|
          |     &D1      | DTR toggle causes online command mode       |
          |--------------+---------------------------------------------|
          |    í &D2     | Normal DTR operations                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  FACTORY DEFAULT PROFILE                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &F [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Sets values in active profile to values     |
          |              | found in the default profile                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &F0      | Sets values to standard factory             |
          |              | configuration                               |
          |--------------+---------------------------------------------|
          |     &F1      | Sets values to factory configuration 0      |
          |--------------+---------------------------------------------|
          |     &F2      | Sets values to factory configuration 1      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables flow control options                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &H0      | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |    í &H1     | Hardware flow control, clear to send        |
          |              | enabled                                     |
          |--------------+---------------------------------------------|
          |     &H2      | Software flow control, XON/XOFF enabled     |
          |--------------+---------------------------------------------|
          |     &H3      | Hardware and software flow control enabled  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 FLOW CONTROL PASS THROUGH                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &In [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables flow control options                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &I0      | XON/XOFF flow control disabled              |
          |--------------+---------------------------------------------|
          |     &I1      | Process XON/XOFF signals to your modem and  |
          |              | remote system                               |
          |--------------+---------------------------------------------|
          |     &I2      | Process XON/XOFF signals to your modem only |
          |--------------+---------------------------------------------|
          |     &I3      | Hewlett Packard host mode enabled. Modem    |
          |              | receives an ENQ and returns an ACK if the   |
          |              | transmit buffers are 90% full or below 30%  |
          |              | full. Modem will respond immediately if     |
          |              | buffers are empty.                          |
          |--------------+---------------------------------------------|
          |     &I4      | Hewlett Packard terminal mode enabled.      |
          |              | Modem receives an ENQ from remote DCE and   |
          |              | passes it to the DTE. Modem waits for an    |
          |              | ACK before sending further data.            |
          |--------------+---------------------------------------------|
          |     &I5      | Special flow control enabled                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      DATA COMPRESSION                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables data compression                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &K0      | Data compression disabled                   |
          |--------------+---------------------------------------------|
          |    í &K1     | Auto enable/disable                         |
          |--------------+---------------------------------------------|
          |     &K2      | Data compression enabled                    |
          |--------------+---------------------------------------------|
          |     &K3      | MNP5 disabled, V.42bis enabled              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    COMMUNICATIONS MODE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects communications mode                 |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |     &M0      | Normal mode                                 |
          |--------------+---------------------------------------------|
          |     &M4      | Normal/ARQ mode                             |
          |--------------+---------------------------------------------|
          |     &M5      | ARQ mode                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CONNECTION SPEED UPPER LIMIT                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets required connection speed if &U is set |
          |              | to 0; otherwise, sets fastest allowed       |
          |              | connection speed.                           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &N0      | No maximum connect speed.                   |
          |--------------+---------------------------------------------|
          |     &N1      | Set maximum connect speed to 300bps.        |
          |--------------+---------------------------------------------|
          |     &N2      | Set maximum connect speed to 1200bps.       |
          |--------------+---------------------------------------------|
          |     &N3      | Set maximum connect speed to 2400bps.       |
          |--------------+---------------------------------------------|
          |     &N4      | Set maximum connect speed to 4800bps.       |
          |--------------+---------------------------------------------|
          |     &N5      | Set maximum connect speed to 7200bps.       |
          |--------------+---------------------------------------------|
          |     &N6      | Set maximum connect speed to 9600bps.       |
          |--------------+---------------------------------------------|
          |     &N7      | Set maximum connect speed to 12Kbps.        |
          |--------------+---------------------------------------------|
          |     &N8      | Set maximum connect speed to 14.4Kbps.      |
          |--------------+---------------------------------------------|
          |     &N9      | Set maximum connect speed to 16.8Kbps.      |
          |--------------+---------------------------------------------|
          |     &N10     | Set maximum connect speed to 19.2Kbps.      |
          |--------------+---------------------------------------------|
          |     &N11     | Set maximum connect speed to 21.6Kbps.      |
          |--------------+---------------------------------------------|
          |     &N12     | Set maximum connect speed to 24Kbps.        |
          |--------------+---------------------------------------------|
          |     &N13     | Set maximum connect speed to 26.4Kbps.      |
          |--------------+---------------------------------------------|
          |     &N14     | Set maximum connect speed to 28.8Kbps.      |
          |--------------+---------------------------------------------|
          |     &N15     | Set maximum connect speed to 31.2Kbps.      |
          |--------------+---------------------------------------------|
          |     &N16     | Set maximum connect speed to 33.6Kbps.      |
          |--------------+---------------------------------------------|
          |     &N17     | Set maximum connect speed to 32Kbps         |
          |--------------+---------------------------------------------|
          |     &N18     | Set maximum connect speed to 36Kbps         |
          |--------------+---------------------------------------------|
          |     &N19     | Set maximum connect speed to 40Kbps         |
          |--------------+---------------------------------------------|
          |     &N20     | Set maximum connect speed to 44Kbps         |
          |--------------+---------------------------------------------|
          |     &N21     | Set maximum connect speed to 48Kbps         |
          |--------------+---------------------------------------------|
          |     &N22     | Set maximum connect speed to 49.3Kbps       |
          |--------------+---------------------------------------------|
          |     &N23     | Set maximum connect speed to 50.6Kbps       |
          |--------------+---------------------------------------------|
          |     &N24     | Set maximum connect speed to 52Kbps         |
          |--------------+---------------------------------------------|
          |     &N25     | Set maximum connect speed to 53.3Kpbs       |
          |--------------+---------------------------------------------|
          |     &N26     | Set maximum connect speed to 54.6Kbps       |
          |--------------+---------------------------------------------|
          |     &N27     | Set maximum connect speed to 56Kbps         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    PULSE DIALING RATIO                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Pn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects pulse dial make/break ratio         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &P0     | 39/61ms at 10pps (North America)            |
          |--------------+---------------------------------------------|
          |     &P1      | 33/67ms at 10pps (Europe)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RECEIVE DATA                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Rn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects RTS options                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &R1      | RTS is ignored by modem.                    |
          |--------------+---------------------------------------------|
          |     &R2      | Modem sends data to DTE only if RTS is on   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DATA SET READY (DSR)                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects DSR options                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &S0     | DSR forced high                             |
          |--------------+---------------------------------------------|
          |     &S1      | DSR high only while modem is handshaking or |
          |              | connected                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CONNECTION SPEED LOWER LIMIT                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Un [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets slowest allowed connection speed if &N |
          |              | is set to 1 or higher.                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &U0     | No minimum connect speed.                   |
          |--------------+---------------------------------------------|
          |     &U1      | Set minimum connect speed to 300bps.        |
          |--------------+---------------------------------------------|
          |     &U2      | Set minimum connect speed to 1200bps.       |
          |--------------+---------------------------------------------|
          |     &U3      | Set minimum connect speed to 2400bps.       |
          |--------------+---------------------------------------------|
          |     &U4      | Set minimum connect speed to 4800bps.       |
          |--------------+---------------------------------------------|
          |     &U5      | Set minimum connect speed to 7200bps.       |
          |--------------+---------------------------------------------|
          |     &U6      | Set minimum connect speed to 9600bps.       |
          |--------------+---------------------------------------------|
          |     &U7      | Set minimum connect speed to 12Kbps.        |
          |--------------+---------------------------------------------|
          |     &U8      | Set minimum connect speed to 14.4Kbps.      |
          |--------------+---------------------------------------------|
          |     &U9      | Set minimum connect speed to 16.8Kbps.      |
          |--------------+---------------------------------------------|
          |     &U10     | Set minimum connect speed to 19.2Kbps.      |
          |--------------+---------------------------------------------|
          |     &U11     | Set minimum connect speed to 21.6Kbps.      |
          |--------------+---------------------------------------------|
          |     &U12     | Set minimum connect speed to 24Kbps.        |
          |--------------+---------------------------------------------|
          |     &U13     | Set minimum connect speed to 26.4Kbps.      |
          |--------------+---------------------------------------------|
          |     &U14     | Set minimum connect speed to 28.8Kbps.      |
          |--------------+---------------------------------------------|
          |     &U15     | Set minimum connect speed to 31.2Kbps.      |
          |--------------+---------------------------------------------|
          |     &U16     | Set minimum connect speed to 33.6Kbps.      |
          |--------------+---------------------------------------------|
          |     &U17     | Set maximum connect speed to 32Kbps         |
          |--------------+---------------------------------------------|
          |     &U18     | Set maximum connect speed to 36Kbps         |
          |--------------+---------------------------------------------|
          |     &U19     | Set maximum connect speed to 40Kbps         |
          |--------------+---------------------------------------------|
          |     &U20     | Set maximum connect speed to 44Kbps         |
          |--------------+---------------------------------------------|
          |     &U21     | Set maximum connect speed to 48Kbps         |
          |--------------+---------------------------------------------|
          |     &U22     | Set maximum connect speed to 49.3Kbps       |
          |--------------+---------------------------------------------|
          |     &U23     | Set maximum connect speed to 50.6Kbps       |
          |--------------+---------------------------------------------|
          |     &U24     | Set maximum connect speed to 52Kbps         |
          |--------------+---------------------------------------------|
          |     &U25     | Set maximum connect speed to 53.3Kpbs       |
          |--------------+---------------------------------------------|
          |     &U26     | Set maximum connect speed to 54.6Kbps       |
          |--------------+---------------------------------------------|
          |     &U27     | Set maximum connect speed to 56Kbps         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       BREAK HANDLING                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Yn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets break handling                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &Y0      | Destructive, but doesn’t sent break         |
          |--------------+---------------------------------------------|
          |    í &Y1     | Destructive, expedited                      |
          |--------------+---------------------------------------------|
          |     &Y2      | Nondestructive, expedited                   |
          +------------------------------------------------------------+
       
                               S(STATUS) -REGISTERS
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S13                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S13=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-174                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls reset, delete, and auto dial..     |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Does not reset the modem when DTR is not    |
          |      |       | asserted                                    |
          |      |     1 |                                             |
          |      |       | Resets the modem when DTR is not asserted   |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Does not reset the non-MNP transmit buffer  |
          |      |       | from 1.5KB to 128B                          |
          |      |     1 |                                             |
          |      |       | Resets the non-MNP transmit buffer from     |
          |      |       | 1.5KB to 128B                               |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Backspace key not set to delete             |
          |      |       |                                             |
          |      |     1 | Backspace key set to delete                 |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Does not autodial number stored in NVRAM    |
          |      |       | location 0 when the DTR is asserted         |
          |      |     1 |                                             |
          |      |       | Autodials number stored in NVRAM location 0 |
          |      |       | when the DTR is asserted                    |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Does not autodial number stored in NVRAM    |
          |      |       | location 0 when software is reset or modem  |
          |      |     1 | is powered up                               |
          |      |       |                                             |
          |      |       | Autodials number stored in NVRAM location 0 |
          |      |       | when software is reset or modem is powered  |
          |      |       | up                                          |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Does not disables V.32bis ASL mode          |
          |      |       |                                             |
          |      |     1 | Disables V.32bis ASL mode                   |
          |------+-------+---------------------------------------------|
          |  6   |   0 1 | Does not disable quick retrains             |
          |      |       |                                             |
          |      |       | Disables quick retrain                      |
          |------+-------+---------------------------------------------|
          |  7   |     0 | Does not disconnect on escape mode          |
          |      |       |                                             |
          |      |     1 | Disconnects on escape mode                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S15                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S15=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Disable/Enable MNP                          |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Enable ARQ/MNP for V.22                     |
          |      |       |                                             |
          |      |     1 | Disable ARQ/MNP for V.22                    |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Enable ARQ/MNP for V.22bis                  |
          |      |       |                                             |
          |      |     1 | Disable ARQ/MNP for V.22bis                 |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Enable ARQ/MNP for V.32/V.32bis/V.32terbo   |
          |      |       |                                             |
          |      |     1 | Enable ARQ/MNP for V.32/V.32bis/V.32terbo   |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Enable MNP handshake                        |
          |      |       |                                             |
          |      |     1 | Disable MNP handshake                       |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Enable MNP level 4                          |
          |      |       |                                             |
          |      |     1 | Disable MNP level 4                         |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Enable MNP level 3                          |
          |      |       |                                             |
          |      |     1 | Disable MNP level 3                         |
          |------+-------+---------------------------------------------|
          |  6   |     0 | MNP compatibility                           |
          |      |       |                                             |
          |      |     1 | MNP incompatibility                         |
          |------+-------+---------------------------------------------|
          |  7   |   0 1 | Enable V.42 operation                       |
          |      |       |                                             |
          |      |       | Disable V.42 operation                      |
          +------------------------------------------------------------+
       
                                                                        
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S16=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls touch tone dialing test.           |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |   í 0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Touch tone dialing test not in progress     |
          |      |       |                                             |
          |      |     1 | Touch tone dialing test in progress         |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Test pattern is not being generated         |
          |      |       |                                             |
          |      |     1 | Test pattern is being generated             |
          |------+-------+---------------------------------------------|
          | 3-7  |     0 | Reserved                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S19=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Unit:        | 1 second                                    |
          |--------------+---------------------------------------------|
          | Description: | Activates when there is no activity on the  |
          |              | phone line. Modem hangs up at time-out      |
          |------------------------------------------------------------|
          |      Note: S19=0 disables the timer and allows an          |
          |      indefinite duration.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   MNP OR V.42 MODE DELAY                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S21=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | 10ms                                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the length of breaks sent from modem   |
          |              | to computer.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FLOW CONTROL CHARACTER - XON                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S22=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XON    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               FLOW CONTROL CHARACTER - XOFF                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S23=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XOFF   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S27                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S27=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables modulation protocols       |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Disable V.21/Bell 103 mode select           |
          |      |       |                                             |
          |      |     1 | Enable V.21/Bell 103 mode select            |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Disable unencoded modulation in V.32 mode   |
          |      |       |                                             |
          |      |     1 | Enable unencoded modulation in V.32 mode    |
          |------+-------+---------------------------------------------|
          |  2   |     0 | Enable V.32 modulation                      |
          |      |       |                                             |
          |      |     1 | Disable V.32 modulation                     |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Enable 2100Hz answer tone                   |
          |      |       |                                             |
          |      |     1 | Disable 2100Hz answer tone                  |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Disable V.23 fallback mode                  |
          |      |       |                                             |
          |      |     1 | Enable V.23 fallback mode                   |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Enable V.32bis mode                         |
          |      |       |                                             |
          |      |     1 | Disable V.32bis mode                        |
          |------+-------+---------------------------------------------|
          |  6   |     0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          |  7   |   0 1 | Software compatibility mode disabled        |
          |      |       |                                             |
          |      |       | Software compatibility mode enabled, all    |
          |      |       | connect messages 9.6Kbps or greater         |
          |      |       | expressed as CONNECT 9600                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      CONNECTION TIME                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S28=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | .01 second                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets V.32 duration                          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S28=0     | Eliminates the V.32 answer tone for a       |
          |              | faster connection                           |
          |--------------+---------------------------------------------|
          |    S28=8     | Times are in .1 second                      |
          |--------------+---------------------------------------------|
          |   S28=255    | Disable connections except V.32 at 9600bps  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       FALLBACK TIMER                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S29=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | .01 second                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the duration of the V.21 answer mode   |
          |              | fallback timer                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TAD AUDIO                          |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S31=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Description: | Adjusts the TAD audio level                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S32                   |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S32=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Range:          | 0-255                                    |
          |-----------------+------------------------------------------|
          | Description:    | Select setup for 28.8 and higher speed   |
          |                 | modems                                   |
          |------------------------------------------------------------|
          |    Bit    |    Value    |             Function             |
          |-----------+-------------+----------------------------------|
          |     0     |           0 | Disable V.8 call indicate        |
          |           |             |                                  |
          |           |           1 | Enable V.8 call indicate         |
          |-----------+-------------+----------------------------------|
          |     1     |           0 | Disable V.8 mode                 |
          |           |             |                                  |
          |           |           1 | Enable V.8 mode                  |
          |-----------+-------------+----------------------------------|
          |     2     |           0 | Reserved                         |
          |-----------+-------------+----------------------------------|
          |     3     |           0 | Enable V.34 modulation           |
          |           |             |                                  |
          |           |           1 | Disable V.34 modulation          |
          |-----------+-------------+----------------------------------|
          |     4     |           0 | Enable V.34+ modulation          |
          |           |             |                                  |
          |           |           1 | Disable V.34+ modulation         |
          |-----------+-------------+----------------------------------|
          |     5     |           0 | Enable x2 modulation             |
          |           |             |                                  |
          |           |           1 | Disable x2 modulation            |
          |-----------+-------------+----------------------------------|
          |    6-7    |           0 | Reserved                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S33                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S33=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Disable/enable data rates                 |
          |------------------------------------------------------------|
          |   Bit    | Value  |                Function                |
          |----------+--------+----------------------------------------|
          |    0     |      0 | Enable 2400 symbol rate                |
          |          |        |                                        |
          |          |      1 | Disable 2400 symbol rate               |
          |----------+--------+----------------------------------------|
          |    1     |      0 | Enable 2743 symbol rate                |
          |          |        |                                        |
          |          |      1 | Disable 2743 symbol rate               |
          |----------+--------+----------------------------------------|
          |    2     |      0 | Enable 2800 symbol rate                |
          |          |        |                                        |
          |          |        | Disable 2800 symbol rate               |
          |----------+--------+----------------------------------------|
          |    3     |      0 | Enable 3000 symbol rate                |
          |          |        |                                        |
          |          |      1 | Disable 3000 symbol rate               |
          |----------+--------+----------------------------------------|
          |    4     |      0 | Enable 3200 symbol rate                |
          |          |        |                                        |
          |          |      1 | Disable 3200 symbol rate               |
          |----------+--------+----------------------------------------|
          |    5     |      0 | Enable 3429 symbol rate                |
          |          |        |                                        |
          |          |      1 | Disable 3429 symbol rate               |
          |----------+--------+----------------------------------------|
          |    6     |      0 | Reserved                               |
          |----------+--------+----------------------------------------|
          |    7     |      0 | Enable shaping                         |
          |          |        |                                        |
          |          |      1 | Disable shaping                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S34                   |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] S34=n [cmds]                    |
          |----------------+-------------------------------------------|
          | Range:         | 0-255                                     |
          |----------------+-------------------------------------------|
          | Description:   | Disable/enable trellis encoding           |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |    0     |     0 | Enable 8S-2D trellis encoding           |
          |          |       |                                         |
          |          |     1 | Disable 8S-2D trellis encoding          |
          |----------+-------+-----------------------------------------|
          |    1     |     0 | Enable 16S-4D trellis encoding          |
          |          |       |                                         |
          |          |     1 | Disable 16S-4D trellis encoding         |
          |----------+-------+-----------------------------------------|
          |    2     |     0 | Enable 32S-2D trellis encoding          |
          |          |       |                                         |
          |          |     1 | Disable 32S-2D trellis encoding         |
          |----------+-------+-----------------------------------------|
          |    3     |     0 | Enable 64S-4D trellis encoding          |
          |          |       |                                         |
          |          |     1 | Disable 64S-4D trellis encoding         |
          |----------+-------+-----------------------------------------|
          |    4     |     0 | Enable non-linear coding                |
          |          |       |                                         |
          |          |     1 | Disable non-linear coding               |
          |----------+-------+-----------------------------------------|
          |    5     |     0 | Enable TX level deviation               |
          |          |       |                                         |
          |          |     1 | Disable TX level deviation              |
          |----------+-------+-----------------------------------------|
          |    6     |     0 | Enable pre-emphasis                     |
          |          |       |                                         |
          |          |     1 | Disable pre-emphasis                    |
          |----------+-------+-----------------------------------------|
          |    7     |     0 | Enable pre-coding                       |
          |          |       |                                         |
          |          |     1 | Disable pre-coding                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CONNECTION - SETUP                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S35=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum allowable data exchange    |
          |              | rate attempted during handshake process.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S35=0     | Speed of last connection                    |
          |--------------+---------------------------------------------|
          |    S35=1     | 28.8Kbps                                    |
          |--------------+---------------------------------------------|
          |    S35=2     | 26.4Kbps                                    |
          |--------------+---------------------------------------------|
          |    S35=3     | 24.0Kbps                                    |
          |--------------+---------------------------------------------|
          |    S35=4     | 21.6bps                                     |
          |--------------+---------------------------------------------|
          |    S35=5     | 19.2Kbps                                    |
          |--------------+---------------------------------------------|
          |    S35=6     | 16.8Kbps                                    |
          |--------------+---------------------------------------------|
          |    S35=7     | 14.4Kbps                                    |
          |--------------+---------------------------------------------|
          |    S35=8     | Modem server operation enabled              |
          |--------------+---------------------------------------------|
          |    S35=16    | Modem A law operation enabled               |
          |--------------+---------------------------------------------|
          |    S35=32    | Automatic A/u law detection disabled        |
          |--------------+---------------------------------------------|
          |    S35=64    | Reduced power disabled                      |
          |--------------+---------------------------------------------|
          |   S35=128    | Reserved                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S42                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S42=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-128                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | GPI definition (Macintosh only).            |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 0-2  |    00 | Not active                                  |
          |      |       |                                             |
          |      |    01 | CD signal                                   |
          |      |       |                                             |
          |      |    10 | RI signal                                   |
          |      |       |                                             |
          |      |    11 | DSR signal                                  |
          |      |       |                                             |
          |      |   100 | ARQ signal                                  |
          |      |       |                                             |
          |      |   101 | Unidentified                                |
          |      |       |                                             |
          |      |   110 | Unidentified                                |
          |      |       |                                             |
          |      |   111 | Unidentified                                |
          |------+-------+---------------------------------------------|
          | 3-7  |     0 | Reserved                                    |
          +------------------------------------------------------------+