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       # DIGICOM SYSTEMS
       
          SCOUT PCMCIA 28.8 V.34
       
          Card Type              Fax, Modem                              
          Chip Set               Unidentified                            
          Maximum Modem Rate     28.8Kbps                                
          Maximum Fax Rate       14.4Kbps                                
          Data Modulation        Bell 103/212A                           
          Protocol                                                       
                                 ITU-T V.22, V.22bis, V.32, V.32bis,     
                                 V.34                                    
          Fax Modulation         ITU-T V.17, V.27ter, V.29               
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
          Fax Class              Class I & II                            
          Data Bus               PCMCIA                                  
       
                                                                   54680
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, A/                                                     |
          |------------------------------------------------------------|
          | A, B, C, E, H, L, 0, P, Q, M, V, W, Z                      |
          |------------------------------------------------------------|
          | &C, &F, &G, &L, &M, &R, &T, &W, &X, &Y, &Z                 |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | \G, \J, \K, \X                                             |
          |------------------------------------------------------------|
          | %A, %G                                                     |
          |------------------------------------------------------------|
          | -J                                                         |
          |------------------------------------------------------------|
          | "H, "O                                                     |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S16, S18, S25, S26, S27, S30                               |
          |------------------------------------------------------------|
          |                                                            |
          |------------------------------------------------------------|
          | Note: See MHI Help file for full command documentation.    |
          +------------------------------------------------------------+
       
                            PROPRIETARY AT COMMAND SET
       
          +------------------------------------------------------------+
          |                    AUTO-MODE DETECTION                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Nn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects various options for the automatic   |
          |              | detection and negotiation of protocols      |
          |              | during the handshake process if the modem   |
          |              | is communicating with a remote modem of     |
          |              | dissimilar speed.                           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      N0      | Auto-mode detection disabled                |
          |--------------+---------------------------------------------|
          |     íN1      | Auto-mode detection enabled                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    COMMUNICATIONS MODE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Qn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects communications mode (same as &M)    |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |     &Q0      | Asynchronous mode                           |
          |--------------+---------------------------------------------|
          |     &Q1      | Synchronous connect mode and asynchronous   |
          |              | off-line command mode.                      |
          |--------------+---------------------------------------------|
          |     &Q2      | Synchronous connect mode and asynchronous   |
          |              | off-line command mode and set DTR high.     |
          |--------------+---------------------------------------------|
          |     &Q3      | Synchronous connect mode                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CONFIGURATION PROFILES                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &V [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays active and stored configuration    |
          |              | profiles                                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &V0      | View active file, stored profile 0, and     |
          |              | phone numbers                               |
          |--------------+---------------------------------------------|
          |     &V1      | View active file, stored profile 1, and     |
          |              | phone numbers                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    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                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DATA TERMINAL READY (DTR)                  |
          |------------------------------------------------------------|
          | Type:         | Configuration                              |
          |---------------+--------------------------------------------|
          | Format:       | AT [cmds] &Dn [cmds]                       |
          |---------------+--------------------------------------------|
          | Description:  | Selects modem response to DTR              |
          |------------------------------------------------------------|
          |      Note: The action each variant of &D causes depends on |
          |      the setting of &Q                                     |
          |------------------------------------------------------------|
          |    &Q Setting    |   &D0    |   &D1    |   &D2   |   &D3   |
          |------------------+----------+----------+---------+---------|
          |  &Q0, &Q5, &Q6   | Command  | Command  | Command | Command |
          |                  |    0     |    1     |    2    |    3    |
          |------------------+----------+----------+---------+---------|
          |     &Q1, &Q4     | Command  | Command  | Command | Command |
          |                  |    0     |    1     |    2    |    3    |
          |------------------+----------+----------+---------+---------|
          |     &Q2, &Q3     | Command  | Command  | Command | Command |
          |                  |    0     |    1     |    2    |    2    |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |   Command 0   | Modem does not respond to DTR              |
          |---------------+--------------------------------------------|
          |   Command 1   | Modem goes to command mode after DTR goes  |
          |               | is off                                     |
          |---------------+--------------------------------------------|
          |   Command 2   | Modem goes to command mode and disconnects |
          |               | (hangs up) after DTR goes off; Auto-Answer |
          |               | is disabled.                               |
          |---------------+--------------------------------------------|
          |   Command 3   | Modem is initialized after DTR goes off    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#> [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Dials telephone number according to any     |
          |              | modifiers included in the string            |
          |--------------+---------------------------------------------|
          | Note:        | Any combination of modifiers can be used to |
          |              | produce the desired dial functions in       |
          |              | sequence.                                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      DL      | Re-dial last number                         |
          |--------------+---------------------------------------------|
          |      DP      | Pulse dialing enabled                       |
          |--------------+---------------------------------------------|
          |      DR      | Reserved                                    |
          |--------------+---------------------------------------------|
          |     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 on-hook for time specified by S20     |
          |--------------+---------------------------------------------|
          |      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.                        |
          |--------------+---------------------------------------------|
          |      DJ      | Modem performs MNP 10 link negotiation at   |
          |              | the highest supported speed                 |
          |--------------+---------------------------------------------|
          |      DK      | Power level adjustment during MNP link      |
          |              | negotiation enabled                         |
          |--------------+---------------------------------------------|
          |      D^      | Calling tone transmission disabled          |
          |--------------+---------------------------------------------|
          |      D>      | Modem generates a grounding pulse if        |
          |              | enabled by a country specific parameter     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     ECHOPLEX VALIDITY                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Fn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects whether commands sent while in data |
          |              | mode are echoed                             |
          |------------------------------------------------------------|
          |      Note: Echoplex validity is a dummy command and not    |
          |      supported by this modem                               |
          |------------------------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      F0      | Returns error                               |
          |--------------+---------------------------------------------|
          |      F1      | Echoplex disabled                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables flow control options                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &K0      | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     &K3      | RTS/CTS flow control enabled                |
          |--------------+---------------------------------------------|
          |     &K4      | XON/XOFF flow control enabled               |
          |--------------+---------------------------------------------|
          |     &K5      | Transparent XON/XOFF flow control enabled   |
          |--------------+---------------------------------------------|
          |     &K6      | Unidirectional XON/XOFF flow control        |
          |              | enabled                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         JACK TYPE                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Jn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Dummy command for backward compatibility    |
          |--------------+---------------------------------------------|
          |   Command    |                  Jack Type                  |
          |--------------+---------------------------------------------|
          |     &J0      | Returns OK                                  |
          |--------------+---------------------------------------------|
          |     &J1      | Returns OK                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   LONG SPACE DISCONNECT                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Yn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Dummy command for backward compatibility    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      Y0      | Reports OK                                  |
          |--------------+---------------------------------------------|
          |      Y1      | Reports OK                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    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)                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             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      | Displays CONNECT or 1 for all speeds        |
          |--------------+---------------------------------------------|
          |      X1      | Displays connect messages according to ATW  |
          |              | and AT/V commands. Busy tone detection      |
          |              | disabled, dials blindly                     |
          |--------------+---------------------------------------------|
          |      X2      | Displays connect messages according to ATW  |
          |              | and AT/V commands. Busy tone detection      |
          |              | disabled, dial tone detection enabled       |
          |--------------+---------------------------------------------|
          |      X3      | Displays connect messages according to ATW  |
          |              | and AT/V commands. Busy tone detection      |
          |              | enabled, dials blindly                      |
          |--------------+---------------------------------------------|
          |     í X4     | Displays connect messages according to ATW  |
          |              | and AT/V commands. Busy tone detection      |
          |              | enabled, sends all messages                 |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports four digit product code             |
          |--------------+---------------------------------------------|
          |      I1      | Reports OK                                  |
          |--------------+---------------------------------------------|
          |      I2      | Test and reports ROM checksum               |
          |--------------+---------------------------------------------|
          |      I3      | Reports ROM components                      |
          |--------------+---------------------------------------------|
          |      I4      | Reports modem capabilities                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    V.32 - AUTO-RETRAIN                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls auto-retrain function if poor line |
          |              | quality is detected                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &B0      | Auto-retrain enabled. Hang up if line       |
          |              | quality is poor                             |
          |--------------+---------------------------------------------|
          |     &B1      | Auto-retrain enabled. Hang up if poor line  |
          |              | quality persists for longer than threshold  |
          |              | specified by register S37                   |
          |--------------+---------------------------------------------|
          |     &B2      | Do not hang up or retrain. Accept any line  |
          +------------------------------------------------------------+
       
                             EXTENDED AT COMMAND SET
       
          +------------------------------------------------------------+
          |                        COMPRESSION                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %C0      | Data compression disabled                   |
          |--------------+---------------------------------------------|
          |     %C1      | MNP5 enabled                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CONNECT MODE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the type of connection the modem   |
          |              | will operate in                             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \N0      | Normal mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N1      | Direct mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N2      | Reliable mode enabled                       |
          |--------------+---------------------------------------------|
          |     í\N3     | LAPM mode is enabled first, then MNP mode.  |
          |              | Normal mode is selected if both fail        |
          |--------------+---------------------------------------------|
          |     \N4      | LAPM mode is enabled first, then MNP mode.  |
          |              | Modem hangs up if both fail                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      FIRMWARE VERSION                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Display firmware version number             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     FLOW CONTROL TYPE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Qn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets type of flow control used by modem     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \Q0      | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     \Q1      | Bi-directional XON/XOFF flow control        |
          |              | enabled                                     |
          |--------------+---------------------------------------------|
          |     \Q2      | CTS flow control by DTE enabled             |
          |--------------+---------------------------------------------|
          |     \Q3      | Bi-directional RTS/CTS flow control enabled |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Tn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 0-90                                        |
          |--------------+---------------------------------------------|
          | Unit:        | 1 minute                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the length of time that the modem does |
          |              | not receive information before it           |
          |              | disconnects.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   PROTOCOL RESULT CODES                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables protocol result codes      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \V0      | Protocol result codes disabled              |
          |--------------+---------------------------------------------|
          |     \V1      | Protocol result codes enabled               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 V.42bis - DICTIONARY SIZE                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] "Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Select V.42 dictionary size                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     "N0      | Select 512 bytes                            |
          |--------------+---------------------------------------------|
          |     "N1      | Select 1024 bytes                           |
          |--------------+---------------------------------------------|
          |     í"N2     | Select 1536 bytes                           |
          +------------------------------------------------------------+
       
                               S(STATUS) -REGISTERS
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S14                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S14=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-174                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls echo, result codes and display,    |
          |              | dial mode, and answer/originate mode.       |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Command echo disabled                       |
          |      |       |                                             |
          |      |   í 1 | Command echo enabled                        |
          |------+-------+---------------------------------------------|
          |  2   |   í 0 | Result codes enabled                        |
          |      |       |                                             |
          |      |     1 | Result codes disabled                       |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Display result codes in numeric format      |
          |      |       |                                             |
          |      |   í 1 | Display result codes in verbose format      |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Tone dial enabled                           |
          |      |       |                                             |
          |      |   í 1 | Pulse dial enabled                          |
          |------+-------+---------------------------------------------|
          |  6   |     0 | Not used                                    |
          |------+-------+---------------------------------------------|
          |  7   | í 0 1 | Answer mode enabled                         |
          |      |       |                                             |
          |      |       | Originate mode enabled                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S19                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S19=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Autosync protocol support mode              |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          |  1   |     0 | Bisync protocol                             |
          |      |       |                                             |
          |      |   í 1 | HDLC protocol                               |
          |------+-------+---------------------------------------------|
          |  2   |   í 0 | Address detector disabled                   |
          |      |       |                                             |
          |      |     1 | Address detector enabled                    |
          |------+-------+---------------------------------------------|
          |  3   |     0 | NRZI bit coding                             |
          |      |       |                                             |
          |      |   í 1 | NRZ bit coding                              |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Mark idle                                   |
          |      |       |                                             |
          |      |   í 1 | Flag idle                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S21                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S21=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-253                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects CTS/DCD/DSR signals, and low DTR    |
          |              | action                                      |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 0,1  |     0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          |  2   |     0 | CTS follows RTS                             |
          |      |       |                                             |
          |      |     1 | CTS forced high                             |
          |------+-------+---------------------------------------------|
          | 4, 3 |    00 | DTR signal ignored                          |
          |      |       |                                             |
          |      |    01 | Modem goes to command mode on low DTR       |
          |      |       |                                             |
          |      |    10 | Modem disconnects on low DTR; Auto-Answer   |
          |      |       | is disabled.                                |
          |      |    11 |                                             |
          |      |       | Modem is initialized on low DTR             |
          |------+-------+---------------------------------------------|
          |  5   |     0 | DCD forced high                             |
          |      |       |                                             |
          |      |     1 | DCD normal                                  |
          |------+-------+---------------------------------------------|
          |  6   |     0 | DSR forced high                             |
          |      |       |                                             |
          |      |     1 | DSR normal                                  |
          |------+-------+---------------------------------------------|
          |  7   |     0 | Reserved                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S23                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S23=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-189                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Grants/denies remote digital loopback,      |
          |              | controls DTE rate and parity, and sets      |
          |              | guard tone.                                 |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Remote digital loopback denied              |
          |      |       |                                             |
          |      |   í 1 | Remote digital loopback allowed             |
          |------+-------+---------------------------------------------|
          | 3 -  |     0 | Reserved                                    |
          |  1   |       |                                             |
          |------+-------+---------------------------------------------|
          | 5, 4 |    00 | Parity even                                 |
          |      |       |                                             |
          |      |    01 | Space Parity                                |
          |      |       |                                             |
          |      |    10 | Parity odd                                  |
          |      |       |                                             |
          |      |    11 | Mark or No Parity                           |
          |------+-------+---------------------------------------------|
          | 7, 6 |    00 | Guard tone disabled                         |
          |      |       |                                             |
          |      |    01 | Guard tone 550Hz enabled                    |
          |      |       |                                             |
          |      |    10 | Guard tone 1800Hz enabled                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S31                   |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S31=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Range:          | 0-10                                     |
          |-----------------+------------------------------------------|
          | Description:    | Select automode and extended result code |
          |                 | format.                                  |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |     0     |     0 | Not used                               |
          |-----------+-------+----------------------------------------|
          |     1     |     0 | Auto-mode detection disabled           |
          |           |       |                                        |
          |           |     1 | Auto-mode detection enabled            |
          |-----------+-------+----------------------------------------|
          |   3, 2    |    00 | Enables CONNECT result codes to report |
          |           |       | DTE speed                              |
          |           |    01 |                                        |
          |           |       | Full reporting of CONNECT result codes |
          |           |    10 |                                        |
          |           |       | Enables CONNECT result codes to report |
          |           |       | DCE speed                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S40                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S40=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls automode and V.42 detection        |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | Automode disabled                           |
          |      |       |                                             |
          |      |     1 | Automode enabled                            |
          |------+-------+---------------------------------------------|
          | 1-5  |     0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          |  6   |     0 | V.42 detection disabled                     |
          |      |       |                                             |
          |      |     1 | V.42 detection enabled                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           AUTOMATIC-FALLBACK FOR MNP NEGOTIATION           |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S43=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 1-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Determines automatic fallback character for |
          |              | MNP negotiation                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S44                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S44=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls data compression mode              |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | V.42bis disabled                            |
          |      |       |                                             |
          |      |     1 | V.42bis enabled                             |
          |------+-------+---------------------------------------------|
          | 1,2  |    00 | V.42bis disabled                            |
          |      |       |                                             |
          |      |    01 | V.42bis when transmitting enabled           |
          |      |       |                                             |
          |      |    10 | V.42bis when receiving enabled              |
          |      |       |                                             |
          |      |    11 | V.42bis when transmitting/receiving enabled |
          |------+-------+---------------------------------------------|
          |  3   |     0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Auto-fallback/fall-forward disabled         |
          |      |       |                                             |
          |      |     1 | Auto-fallback/fall-forward enabled          |
          |------+-------+---------------------------------------------|
          | 5-7  |     0 | Reserved                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    AUTORELIABLE BUFFER                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S48=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-2                                         |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Controls autoreliable buffer                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S51                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S51=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls data/fax DTE flow control          |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 0-1  |    00 | Flow control disabled                       |
          |      |       |                                             |
          |      |    01 | RTS to CTS flow control enabled             |
          |      |       |                                             |
          |      |    10 | XON/XOFF flow control enabled               |
          |      |       |                                             |
          |      |    11 | RTS/CTS flow control enabled                |
          |------+-------+---------------------------------------------|
          | 2-3  |     0 | Reserved                                    |
          |------+-------+---------------------------------------------|
          |  4   |     0 | Flow control disabled                       |
          |      |       |                                             |
          |      |     1 | Flow control enabled                        |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Serial speed locked                         |
          |      |       |                                             |
          |      |     1 | Serial speed follows connect speed          |
          |------+-------+---------------------------------------------|
          | 6,7  |     0 | XON/XOFF signals trapped by local modem     |
          |      |       |                                             |
          |      |     1 | XON/XOFF signals passed through local modem |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S54                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S54=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Unidentified                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        BTLZ OPTIONS                        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S58=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 6-64                                        |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets BTLZ string length. Default=32         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        BREAK OPTION                        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S52=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-5                                         |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Controls break options. Default=5           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CONNECT MESSAGE DISPLAY                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S41=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-2                                         |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Control display of connect message          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       DATA/FAX MODE                        |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S50=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-1                                         |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Control data/fax mode options               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       DCE LINE SPEED                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S37=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum allowable data exchange    |
          |              | rate attempted during handshake process.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DTE RATE SELECTION                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S72=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-18                                        |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Selects DTE rate during data transfer       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      DTE RATE STATUS                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S62=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-17                                        |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Determines DTE rate status. Default=16      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      EEPROM CHECKSUM                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S99=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets EEPROM checksum                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     MAXIMUM BLOCK SIZE                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S49=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 63-255                                      |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum block size. Default=255    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   MNP5 ERROR CORRECTION                    |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S59=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-1                                         |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets MNP5 error correction. Default=1       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    MODEM OPERATING MODE                    |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S53=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-4                                         |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Selects modem operating mode                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      POWER-UP PROFILE                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S98=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets power-up profile number                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      ROUND TRIP DELAY                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S65=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | 1sec                                        |
          |--------------+---------------------------------------------|
          | Description: | Sets round trip time delay                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        SLEEP TIMER                         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S46=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1sec                                        |
          |--------------+---------------------------------------------|
          | Description: | Maximum duration of DTE and DCE inactivity  |
          |              | allowed prior to initiating low-power sleep |
          |              | mode.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     SLEEP TIMER/PCMCIA                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S47=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1sec                                        |
          |--------------+---------------------------------------------|
          | Description: | Maximum duration of DTE and DCE inactivity  |
          |              | allowed prior to initiating low-power sleep |
          |              | mode.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        V.32 RETRAIN                        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S42=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-2                                         |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Controls V.32 retrain                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  V.42bis DICTIONARY SIZE                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S57=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-2                                         |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum V.42bis dictionary size.   |
          |              | Default=2                                   |