(TXT) View Source
       
       # 3COM CORPORATION
       
          US ROBOTICS COURIER EXTERNAL I-MODEM
       
          Card Type              Modem (synchronous/asynchronous)        
          Chip Set               Unidentified                            
          Maximum Modem Rate     56Kbps                                  
                                                                         
          ISDN Transfer Rate     128Kbps                                 
          Maximum Fax Rate       14.4Kbps                                
          Data Modulation        Bell 103/212A                           
          Protocol                                                       
                                 ITU-T x2, V.34, V.FC, V.32terbo, V.32,  
          ISDN Protocol          V.32bis                                 
                                                                         
                                 ITU-T V.120, V.110                      
          Fax Modulation         Unidentified                            
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
          Fax Class              Class I & II                            
          Data Bus               External                                
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Function        |  Label   |   Function   |  Label  |
          |------------------------------------------------------------|
          | DC power                     |    CN1    | Line out | CN4  |
          |------------------------------+-----------+----------+------|
          | ISDN connector               |    CN2    | Line in  | CN5  |
          |------------------------------+-----------+----------+------|
          | RS-232/422                   |    CN3    |          |      |
          +------------------------------------------------------------+
       
                                         
       
                                         
       
                                         
       
                                         
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | í Load &F0 setting upon reset       | SW1/1 |     Off      |
          |-------------------------------------+-------+--------------|
          | Load NVRAM settings upon reset      | SW1/1 |      On      |
          |-------------------------------------+-------+--------------|
          | í Factory configured - do not alter | SW1/3 | Unidentified |
          |-------------------------------------+-------+--------------|
          | í Factory configured - do not alter | SW1/4 | Unidentified |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        TERMINATION                         |
          |------------------------------------------------------------|
          |   Setting   |  SW1/9   |  SW1/10   |  SW1/11   |  SW1/12   |
          |-------------+----------+-----------+-----------+-----------|
          |    0 Ohm    |   Off    |    Off    |    Off    |    Off    |
          |-------------+----------+-----------+-----------+-----------|
          |   50 Ohm    |   Off    |    On     |    Off    |    On     |
          |-------------+----------+-----------+-----------+-----------|
          |   100 Ohm   |    On    |    Off    |    On     |    Off    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       V.35 SELECTION                       |
          |------------------------------------------------------------|
          |  Setting   | SW1/3 | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
          |------------+-------+-------+-------+-------+-------+-------|
          |    V.35    |  On   |  Off  |  Off  |  Off  |  Off  |  Off  |
          |  enabled   |       |       |       |       |       |       |
          +------------------------------------------------------------+
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
                                         
       
          +-------------------------------------------------------+
          |                   DIAGNOSTIC LED(S)                   |
          |-------------------------------------------------------|
          |      Note: The function of the LED’s is unidentified. |
          +-------------------------------------------------------+
       
                                         
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, ‘+++’, A/                                              |
          |------------------------------------------------------------|
          | A, B, C, E, F, O, V                                        |
          |------------------------------------------------------------|
          | &C, &G, &Z                                                 |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S18, S26                                                   |
          |------------------------------------------------------------|
          | Note: See MHI Help File for full command documentation.    |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                  ADDITIONAL RESULT CODES                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &An [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the display of the additional      |
          |              | result codes                                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &A0     | Do not display ARQ result codes             |
          |--------------+---------------------------------------------|
          |     &A1      | Display ARQ result codes                    |
          |--------------+---------------------------------------------|
          |     &A2      | Display ARQ result codes, HST, V.32, V.FC,  |
          |              | V.34 or Digital modulation indicator        |
          |--------------+---------------------------------------------|
          |     &A3      | Display ARQ result codes and error control  |
          |              | indicator LAPM, HST, MNP, SYNC, V.120, or   |
          |              | NONE                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       BREAK HANDLING                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Yn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the break handling                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &Y0     | Destructive, don’t send break               |
          |--------------+---------------------------------------------|
          |     &Y1      | Destructive, expedited break sent           |
          |--------------+---------------------------------------------|
          |     &Y2      | Nondestructive, expedited break sent        |
          |--------------+---------------------------------------------|
          |     &Y3      | Non destructive un-expedited break sent     |
          +------------------------------------------------------------+
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
          +------------------------------------------------------------+
          |                      CONNECTION RATE                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the connection rate                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &N0     | Variable rate                               |
          |--------------+---------------------------------------------|
          |     &N1      | 300bps                                      |
          |--------------+---------------------------------------------|
          |     &N2      | 1200bps                                     |
          |--------------+---------------------------------------------|
          |     &N3      | 2400bps                                     |
          |--------------+---------------------------------------------|
          |     &N4      | 4800bps                                     |
          |--------------+---------------------------------------------|
          |     &N5      | 7200bps                                     |
          |--------------+---------------------------------------------|
          |     &N6      | 9600bps                                     |
          |--------------+---------------------------------------------|
          |     &N7      | 12Kbps                                      |
          |--------------+---------------------------------------------|
          |     &N8      | 14.4Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N9      | 16.8Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N10     | 19.2Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N11     | 21.6Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N12     | 24Kbps                                      |
          |--------------+---------------------------------------------|
          |     &N13     | 26.4Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N14     | 28.8Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N15     | 31.2Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N16     | 33.6Kbps                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      DATA COMPRESSION                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the data compression               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &K0      | Data compression disabled                   |
          |--------------+---------------------------------------------|
          |    í &K1     | Use auto enable/disable data compression    |
          |--------------+---------------------------------------------|
          |     &K2      | Data compression always enabled             |
          |--------------+---------------------------------------------|
          |     &K3      | Selective data compression                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DATA SET READY (DSR)                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects DSR options                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &S0      | DSR forced high                             |
          |--------------+---------------------------------------------|
          |    í &S1     | DSR high only while modem is handshaking or |
          |              | connected                                   |
          |--------------+---------------------------------------------|
          |     &S2      | Pulsed DSR sent with CTS following CD when  |
          |              | the carrier is lost                         |
          |--------------+---------------------------------------------|
          |     &S3      | Pulsed DSR sent following CD when the       |
          |              | carrier is lost                             |
          |--------------+---------------------------------------------|
          |     &S4      | Send the computer a DSR signal at the same  |
          |              | time as the CD                              |
          |--------------+---------------------------------------------|
          |     &S5      | Send DSR normally, and follow CTS with CD   |
          +------------------------------------------------------------+
       
           
       
           
       
           
       
          +------------------------------------------------------------+
          |                 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                                     |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |     í &D0     | Modem does not respond to DTR              |
          |---------------+--------------------------------------------|
          |      &D1      | Modem goes to command mode after DTR goes  |
          |               | is off                                     |
          |---------------+--------------------------------------------|
          |      &D2      | Modem goes to command mode and disconnects |
          |               | (hangs up) after DTR goes off; Auto-Answer |
          |               | is disabled.                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            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      | 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"WXY"    | Optional method of denoting telephone       |
          |              | numbers. Letters enclosed in quotes are     |
          |              | interpreted as numbers according to the     |
          |              | system found on a telephone keypad.         |
          |--------------+---------------------------------------------|
          |      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$      | Wait for prompt tone detection function     |
          |              | enabled. Waits for prompt tone for amount   |
          |              | of time specified by the S7 command.        |
          |--------------+---------------------------------------------|
          |      D;      | Modem returned to idle state after dialing. |
          |              | The semicolon can only be placed at the end |
          |              | of the dial command.                        |
          |--------------+---------------------------------------------|
          |      D/      | Pause for 125 milliseconds                  |
          +------------------------------------------------------------+
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
          +------------------------------------------------------------+
          |                       ERROR CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the error control protocol          |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |    í &M0     | Normal mode, no error control               |
          |--------------+---------------------------------------------|
          |     &M1      | On-line synchronous mode, no error control  |
          |--------------+---------------------------------------------|
          |     &M4      | Normal/ARQ mode,                            |
          |--------------+---------------------------------------------|
          |     &M5      | ARQ asynchronous mode                       |
          |--------------+---------------------------------------------|
          |     &M6      | V.25bis synchronous mode.                   |
          |--------------+---------------------------------------------|
          |     &M7      | V.25bis synchronous mode using HDLC link    |
          |              | protocol                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  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                   |
          |--------------+---------------------------------------------|
          |    í &F0     | Load No Flow Control template settings      |
          |--------------+---------------------------------------------|
          |     &F1      | Load Hardware Flow Control template         |
          |              | settings                                    |
          |--------------+---------------------------------------------|
          |     &F2      | Load Software Flow Control template         |
          |              | settings                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       HARDWARE RESET                       |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Z! [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Performs a hardware reset                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            HELP                            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $ [cmds]                          |
          |--------------+---------------------------------------------|
          | Description: | Display the help commands for the selected  |
          |              | command sets                                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      #$      | Display the help pannels for the octothorpe |
          |              | (#) command set                             |
          |--------------+---------------------------------------------|
          |      *$      | Displays the help pannels for the * command |
          |              | set                                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        HOOK CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Hn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the modem is on-hook or     |
          |              | off-hook                                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í H0     | Modem commanded to go on-hook (hang-up)     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       LINE SELECTION                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects the phone line type                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &L0      | Switched line (PSTN/Dial-up)                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        MODEM CLOCK                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Kn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Controls the modem clock                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í K0     | If on-line, display current call duration;  |
          |              | if off-line, display the last call’s        |
          |              | duration                                    |
          |--------------+---------------------------------------------|
          |      K1      | Display the actual time (set clock using    |
          |              | ATI3=HH:MM:SS K1)                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 RECEIVE DATA FLOW CONTROL                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &In [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the receive data flow control      |
          |--------------+---------------------------------------------|
          |   Command    |                  Jack Type                  |
          |--------------+---------------------------------------------|
          |    í &I0     | Disables XON/XOFF flow control              |
          |--------------+---------------------------------------------|
          |     &I1      | Modem acts on typed XON/XOFF commands, Ctrl |
          |              | -S, or Ctrl -Q and passes them to remote    |
          |              | device                                      |
          |--------------+---------------------------------------------|
          |     &I2      | Modem acts on typed XON/XOFF commands but   |
          |              | removes them from data stream               |
          |--------------+---------------------------------------------|
          |     &I3      | Hewlett Packard host mode                   |
          |--------------+---------------------------------------------|
          |     &I4      | Hewlett Packard terminal mode               |
          |--------------+---------------------------------------------|
          |     &I5      | Enable flow control on the phone link when  |
          |              | the connection is not under error control   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports 4 digit product code                |
          |--------------+---------------------------------------------|
          |      I1      | Reports results of ROM checksum             |
          |--------------+---------------------------------------------|
          |      I2      | Reports results of RAM test                 |
          |--------------+---------------------------------------------|
          |      I3      | Reports the product name                    |
          |--------------+---------------------------------------------|
          |      I4      | Reports the current modem settings          |
          |--------------+---------------------------------------------|
          |      I5      | Reports the settings stored in NVRAM        |
          |--------------+---------------------------------------------|
          |      I6      | Reports statistics for the last call        |
          |--------------+---------------------------------------------|
          |      I7      | Reports product configuration               |
          |--------------+---------------------------------------------|
          |     I10      | Reports dial security account status        |
          |              | information                                 |
          |--------------+---------------------------------------------|
          |     I11      | Displays high speed connection report       |
          |--------------+---------------------------------------------|
          |     I12      | Display the ISDN settings                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RESULT CODES                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Qn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables modem to send result codes to the   |
          |              | DTE                                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í Q0     | Result code sending enabled                 |
          |--------------+---------------------------------------------|
          |      Q1      | Result code sending disabled                |
          |--------------+---------------------------------------------|
          |      Q2      | Suppress result codes when answering        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          RTS/CTS                           |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Rn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects RTS/CTS options                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &R0     | CTS follows RTS in data mode; RTS is        |
          |              | ignored in command mode.                    |
          |--------------+---------------------------------------------|
          |     &R1      | CTS forced high, RTS is ignored.            |
          |--------------+---------------------------------------------|
          |     &R2      | Enable hardware flow control of received    |
          |              | data                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             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 enabled.            |
          |--------------+---------------------------------------------|
          |      X2      | Busy tone detection disabled, dial tone     |
          |              | detection enabled; result codes 0 - 6 & 10  |
          |              | enabled.                                    |
          |--------------+---------------------------------------------|
          |      X3      | Busy tone detection enabled, dial tone      |
          |              | detection disabled; result codes 0 - 5, 7 & |
          |              | 10 enabled.                                 |
          |--------------+---------------------------------------------|
          |     í X4     | Busy and dial tone detection enabled;       |
          |              | result codes 0 - 7 & 10 enabled.            |
          |--------------+---------------------------------------------|
          |      X5      | Busy tone detection enabled, dial tone      |
          |              | detection disabled, all result codes        |
          |              | enabled                                     |
          |--------------+---------------------------------------------|
          |      X6      | All result codes enabled                    |
          |--------------+---------------------------------------------|
          |      X7      | Voice detection disabled, all result codes  |
          |              | enabled                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      SERIAL PORT RATE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the serial port rate               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &B0     | Variable serial port rate                   |
          |--------------+---------------------------------------------|
          |     &B1      | Fixed serial port rate                      |
          |--------------+---------------------------------------------|
          |     &B2      | In answer mode use fixed rate for ARQ calls |
          |              | and variable rate for non ARQ calls.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Tn                               |
          |--------------+---------------------------------------------|
          | Description: | Selects test options                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &T0      | End current test                            |
          |--------------+---------------------------------------------|
          |     &T3      | Begin local digital loopback                |
          |--------------+---------------------------------------------|
          |     &T4      | Grant remote digital loopback request       |
          |--------------+---------------------------------------------|
          |     &T5      | Deny remote digital loopback request        |
          |--------------+---------------------------------------------|
          |     &T6      | Request remote digital loopback             |
          |--------------+---------------------------------------------|
          |     &T7      | Request remote digital loopback and         |
          |              | self-test                                   |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                 TRANSMIT DATA FLOW CONTROL                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Hn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the transmit data flow             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &H0     | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     &H1      | Hardware flow control enabled               |
          |--------------+---------------------------------------------|
          |     &H2      | Software flow control enabled               |
          |--------------+---------------------------------------------|
          |     &H3      | Both hardware and software flow control     |
          |              | enabled                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   WRITE CURRENT SETTINGS                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &W [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Writes the current settings to NVRAM        |
          +------------------------------------------------------------+
       
                               Extended AT Commands
       
          +------------------------------------------------------------+
          |                      ASSIGN PASSWORD                       |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %V=PWn [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Assign the password in account n in         |
          |              | security account                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CALL TYPE                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the call type                          |
          |--------------+---------------------------------------------|
          | Bit  | Unit  |                  Function                   |
          |------+-------+---------------------------------------------|
          | *V1  |   0   | 3.1 kHz audio (modem/fax)                   |
          |      |       |                                             |
          |      |   1   | Speech                                      |
          |------+-------+---------------------------------------------|
          | *V2  |   0   | Autodetect                                  |
          |      |       |                                             |
          |      |   1   | V.120 rate adaption only                    |
          |      |       |                                             |
          |      |   2   | V.110 rate adaption only                    |
          |      |       |                                             |
          |      |   3   | Modem or fax only                           |
          |      |       |                                             |
          |      |   4   | Clear-channel synchronous                   |
          |      |       |                                             |
          |      |   5   | Asynchronous to synchronous PPP conversion  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CENTRAL OFFICE PROTOCOL                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Wn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the protocol used by the telephone     |
          |              | company’s central office                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *W0      | AT&T 5ESS custom                            |
          |--------------+---------------------------------------------|
          |     *W1      | Northern Telecom DMS-100                    |
          |--------------+---------------------------------------------|
          |     *W2      | National ISDN-1                             |
          |--------------+---------------------------------------------|
          |     *W3      | National ISDN-2                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CLOCK SPEED                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets clock speed for synchronous mode       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %N2      | 1200bps                                     |
          |--------------+---------------------------------------------|
          |     %N3      | 2400bps                                     |
          |--------------+---------------------------------------------|
          |     %N4      | 4800bps                                     |
          |--------------+---------------------------------------------|
          |     %N5      | 7200bps                                     |
          |--------------+---------------------------------------------|
          |     %N6      | 9600bps                                     |
          |--------------+---------------------------------------------|
          |     %N7      | 12000bps                                    |
          |--------------+---------------------------------------------|
          |     %N8      | 14400bps                                    |
          |--------------+---------------------------------------------|
          |     %N9      | 16800bps                                    |
          |--------------+---------------------------------------------|
          |     %N10     | 19200bps                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DIALING MODE                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *On [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the dialing mode                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *O0      | En-bloc dialing                             |
          |--------------+---------------------------------------------|
          |     *O1      | Overlap dialing                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      DIRECTORY NUMBER                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *P [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Sets the Directory number assigned by the   |
          |              | phone company                               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *P1      | The DN for Voice B-channel                  |
          |--------------+---------------------------------------------|
          |     *P2      | The DN for Data B-channel                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  ERASE SECURITY SETTINGS                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Erases selected security settings           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %E1      | Erase local access password                 |
          |--------------+---------------------------------------------|
          |     %E2      | Erase autopass password                     |
          |--------------+---------------------------------------------|
          |     %E3      | Erase passwords in accounts 0-9             |
          |--------------+---------------------------------------------|
          |     %E4      | Erase phone numbers in accounts 0-9         |
          |--------------+---------------------------------------------|
          |     %E5      | Disable account, dialback, and new number   |
          |              | fields in accouns 0-9                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   LOCAL ACCESS PASSWORD                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Set local access password                   |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                     PASSWORD SECURITY                      |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %P [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Disable password security                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    REMOTE CONFIGURATION                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the remote configuration           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %C0      | Defer configuration changes until the call  |
          |              | is ended                                    |
          |--------------+---------------------------------------------|
          |     %C1      | Cancel configuration changes and restore    |
          |              | the original configuration                  |
          |--------------+---------------------------------------------|
          |     %C2      | Force configuration changes to take effect  |
          |              | immediately                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    REMOTE CONFIGURATION                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Fn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Configure another device’s data remotely    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %F0      | No parity, 8 data bits                      |
          |--------------+---------------------------------------------|
          |     %F1      | Mark parity, 7 data bits                    |
          |--------------+---------------------------------------------|
          |     %F2      | Odd parity, 7 data bits                     |
          |--------------+---------------------------------------------|
          |     %F3      | Even parity, 7 data bits                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   RINGING SIGNAL VOLUME                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | 0-9                                         |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Rn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the ringing signal volume              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     SECURITY ACCOUNTS                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %An [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Create and configure security accounts      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     SECURITY ACCOUNTS                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Access security accounts                    |
          +------------------------------------------------------------+
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
          +------------------------------------------------------------+
          |                      SERIAL PORT RATE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Bn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Remotely configure a modem’s serial port    |
          |              | rate                                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %B0      | 110bps                                      |
          |--------------+---------------------------------------------|
          |     %B1      | 300bps                                      |
          |--------------+---------------------------------------------|
          |     %B2      | 600bps                                      |
          |--------------+---------------------------------------------|
          |     %B3      | 1200bps                                     |
          |--------------+---------------------------------------------|
          |     %B4      | 2400bps                                     |
          |--------------+---------------------------------------------|
          |     %B5      | 4800bps                                     |
          |--------------+---------------------------------------------|
          |     %B6      | 9600bps                                     |
          |--------------+---------------------------------------------|
          |     %B7      | 19200bps                                    |
          |--------------+---------------------------------------------|
          |     %B8      | 38400bps                                    |
          |--------------+---------------------------------------------|
          |     %B9      | 57600bps                                    |
          |--------------+---------------------------------------------|
          |     %B10     | 115200bps                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     SERVICE PROFILE ID                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Sn=? [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the service profile ID                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *S1      | The SPID for the Voice B-channel            |
          |--------------+---------------------------------------------|
          |     *S2      | The SPID for the Data B-channel             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 TELEPHONE COMPANY PROTOCOL                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Set switch protocol                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *M0      | Point-to-point                              |
          |--------------+---------------------------------------------|
          |     *M1      | Multipoint                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    TERMINAL ENDPOINT ID                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *T [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Sets the Terminal endpoint ID               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *T1      | 0-63 for the Voice B-channel                |
          |--------------+---------------------------------------------|
          |     *T2      | 0-63 for the Data B-channel                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      TONE FREQUENCIES                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Tn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables recognition of the tone frequencies |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                           VOLUME                           |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets the volume of the sound that comes out |
          |              | of the analog device jack                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *C0      | Off                                         |
          |--------------+---------------------------------------------|
          |     *C1      | Volume level 1                              |
          |--------------+---------------------------------------------|
          |     *C2      | Volume level 2                              |
          |--------------+---------------------------------------------|
          |     *C3      | Volume level 3                              |
          |--------------+---------------------------------------------|
          |     *C4      | Volume level 4                              |
          |--------------+---------------------------------------------|
          |     *C5      | Volume level 5                              |
          |--------------+---------------------------------------------|
          |     *C6      | Volume level 6                              |
          |--------------+---------------------------------------------|
          |     *C7      | Volume level 7                              |
          |--------------+---------------------------------------------|
          |     *C8      | Volume level 8                              |
          |--------------+---------------------------------------------|
          |     *C9      | Volume level 9                              |
          +------------------------------------------------------------+
       
                               S(status) -REGISTERS
       
          +------------------------------------------------------------+
          |                    BIT MAPPED REGISTER                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S15=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls fallback                           |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | Disable the modem’s extra high frequency    |
          |      |       | equalization if it causes problems on       |
          |      |       | shorter -link calls- for HST modulation     |
          |      |       | only                                        |
          |------+-------+---------------------------------------------|
          |  1   |     2 | Disable online fallback                     |
          |------+-------+---------------------------------------------|
          |  2   |     4 | Disable 450bps back channel ---HST only     |
          |------+-------+---------------------------------------------|
          |  3   |     8 | Reset non-ARQ mode transmit buffer from     |
          |      |       | 1.5Kbytes to 128                            |
          |------+-------+---------------------------------------------|
          |  4   |    16 | Disable MNP level 4                         |
          |------+-------+---------------------------------------------|
          |  5   |    32 | Set backspace key to delete                 |
          |------+-------+---------------------------------------------|
          |  6   |    64 | Set for some incompatable 2400bps MNP-I     |
          |      |       | modems                                      |
          |------+-------+---------------------------------------------|
          |  7   |   128 | Custom applications only                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT MAPPED REGISTER S16                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S16=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls loopback tests and test pattern    |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  2   |     4 | Test pattern                                |
          |------+-------+---------------------------------------------|
          |  3   |     8 | Remote digital loopback                     |
          +------------------------------------------------------------+
       
           
       
           
       
           
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT MAPPED REGISTER S53                   |
          |------------------------------------------------------------|
          | Type:             | Register                               |
          |------------------------------------------------------------|
          | Format:         | AT [cmds] S53=n [cmds]                   |
          |-----------------+------------------------------------------|
          | Default:        | 126                                      |
          |-----------------+------------------------------------------|
          | Description:    | Bit mapped register                      |
          |------------------------------------------------------------|
          |    Bit    | Value |                Function                |
          |-----------+-------+----------------------------------------|
          |     0     |     1 | Dial security enabled                  |
          |-----------+-------+----------------------------------------|
          |     1     |     2 | Prompting enabled                      |
          |-----------+-------+----------------------------------------|
          |     2     |     4 | Local access password protection       |
          |           |       | enabled                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT MAPPED REGISTER S54                   |
          |------------------------------------------------------------|
          | Type:         | Register                                   |
          |------------------------------------------------------------|
          | Format:    | AT [cmds] S54=n [cmds]                        |
          |------------+-----------------------------------------------|
          | Unit:      | Bit mapped                                    |
          |------------------------------------------------------------|
          |  Bit  | Value |                  Function                  |
          |-------+-------+--------------------------------------------|
          |   0   |     1 | Disable 2400 symbol rate                   |
          |-------+-------+--------------------------------------------|
          |   1   |     2 | Disable 2743 symbol rate                   |
          |-------+-------+--------------------------------------------|
          |   2   |     4 | Disable 2800 symbol rate                   |
          |-------+-------+--------------------------------------------|
          |   3   |     8 | Disable 3000 symbol rate                   |
          |-------+-------+--------------------------------------------|
          |   4   |    16 | Disable 3200 symbol rate                   |
          |-------+-------+--------------------------------------------|
          |   5   |    32 | Disable 3429 symbol rate                   |
          |-------+-------+--------------------------------------------|
          |   6   |    64 | Disable Call Indicate                      |
          |-------+-------+--------------------------------------------|
          |   7   |   128 | Disable V.8                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S13                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S13=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 170                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0-174                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls echo, result codes and display,    |
          |              | dial mode, and answer/originate mode.       |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | Reset when DTR drops                        |
          |------+-------+---------------------------------------------|
          |  1   |     2 | Reverse normal auto answer mode             |
          |------+-------+---------------------------------------------|
          |  2   |     4 | Disable 250 msec pause before result code   |
          |      |       | display                                     |
          |------+-------+---------------------------------------------|
          |  3   |     8 | On DTR signal, Autodial the number stored   |
          |      |       | in NVRAM at position 0                      |
          |------+-------+---------------------------------------------|
          |  4   |    16 | At power on/reset, auto dial number stored  |
          |      |       | in NVRAM at position 0                      |
          |------+-------+---------------------------------------------|
          |  5   |    32 | Disable HST                                 |
          |------+-------+---------------------------------------------|
          |  6   |    64 | Disable MNP level 3                         |
          |------+-------+---------------------------------------------|
          |  7   |   128 | Hardware reset                              |
          +------------------------------------------------------------+
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S14                   |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S14=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 170                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0-174                                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Controls echo, result codes and display,    |
          |              | dial mode, and answer/originate mode.       |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |   í 1 | Disconnect on escape code                   |
          |------+-------+---------------------------------------------|
          |  1   |     2 | Send result codes only when originating a   |
          |      |       | call                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S21                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S21=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | .01 second                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the duration of breaks sent from the   |
          |              | modem to the computer or terminal           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S28                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S28=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | 8                                           |
          |--------------+---------------------------------------------|
          | Unit:        | .1 second                                   |
          |--------------+---------------------------------------------|
          | Description: | Sets the duration of the extra 3000/600 Hz  |
          |              | answer tones sent during handshaking.       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   BITMAPPED REGISTER S27                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S27=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | 0                                           |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Selects modulation                          |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | Enable ITU-T V.21                           |
          |------+-------+---------------------------------------------|
          |  1   |     2 | Enable un-encoded modulation in V.32 mode   |
          |------+-------+---------------------------------------------|
          |  2   |     4 | Disable V.32 modulation                     |
          |------+-------+---------------------------------------------|
          |  3   |     8 | Disable 2100Hz answer tone                  |
          |------+-------+---------------------------------------------|
          |  4   |     0 | V.42 detection, LAPM error control, MNP     |
          |      |       |                                             |
          |      |    16 | Disable MNP                                 |
          |      |       |                                             |
          |      |     0 | Disable V.42 detection and LAPM             |
          |      |       |                                             |
          |      |    16 | Disable detection phase                     |
          |------+-------+---------------------------------------------|
          |  5   |     0 | V.42 detection, LAPM error control, MNP     |
          |      |       |                                             |
          |      |    32 | Disable MNP                                 |
          |      |       |                                             |
          |      |     0 | Disable V.42 detection and LAPM             |
          |      |       |                                             |
          |      |    32 | Disable detection phase                     |
          |------+-------+---------------------------------------------|
          |  7   |   128 | Unusual software incompatibility            |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S34                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S34n [cmds]                       |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Controls V.32bis                            |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | Disable V.32bis                             |
          |------+-------+---------------------------------------------|
          |  1   |     2 | Disable modem’s enhanced proprietary        |
          |      |       | V.32bis modulation                          |
          |------+-------+---------------------------------------------|
          |  2   |     4 | Disable the faster retrains that occure     |
          |      |       | during proprietary V.32terbo modulation     |
          |------+-------+---------------------------------------------|
          |  3   |     8 | Enable V.23                                 |
          |------+-------+---------------------------------------------|
          |  4   |    16 | Force the MR LED to show DSR                |
          |------+-------+---------------------------------------------|
          |  5   |    32 | Enable MI/MIC                               |
          |------+-------+---------------------------------------------|
          |  6   |    64 | Disable remote access busy message          |
          |------+-------+---------------------------------------------|
          |  7   |   128 | Disable V.32terbo                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S51                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S51=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | MNP/V.42 control                            |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | Disable MNP/V.42 for V.22                   |
          |------+-------+---------------------------------------------|
          |  1   |     2 | Disable MNP/V.42 for V.22bis                |
          |------+-------+---------------------------------------------|
          |  2   |     4 | Disable MNP/V.42 for V.32/V.32bis/V.32terbo |
          |------+-------+---------------------------------------------|
          |  6   |    64 | Disable selective reject                    |
          |------+-------+---------------------------------------------|
          |  7   |   128 | Enable handset exclusion delay              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S55                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S55=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit mapped                                  |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | Disable 8S-2D mapping                       |
          |------+-------+---------------------------------------------|
          |  1   |     2 | Disable 16S-4D mapping                      |
          |------+-------+---------------------------------------------|
          |  2   |     4 | Disable 32S-2D mapping                      |
          |------+-------+---------------------------------------------|
          |  3   |     8 | Disable 64S-4D mapping                      |
          +------------------------------------------------------------+
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
           
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S56                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S56? [cmds]                       |
          |--------------+---------------------------------------------|
          | Unit:        | Bit mapped                                  |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | Disable non-linear coding                   |
          |------+-------+---------------------------------------------|
          |  1   |     2 | Disable TX level deviation                  |
          |------+-------+---------------------------------------------|
          |  2   |     4 | Disable pre-emphasis                        |
          |------+-------+---------------------------------------------|
          |  3   |     8 | Disable precoding                           |
          |------+-------+---------------------------------------------|
          |  4   |    16 | Disable shaping                             |
          |------+-------+---------------------------------------------|
          |  6   |    64 | Disable V.34                                |
          |------+-------+---------------------------------------------|
          |  7   |   128 | Disable V.FC                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S67                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S67 [cmds]                        |
          |--------------+---------------------------------------------|
          | Unit:        | Bit mapped                                  |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | Disable non-linear coding                   |
          |------+-------+---------------------------------------------|
          |  1   |     2 | Disable TX level diviation                  |
          |------+-------+---------------------------------------------|
          |  2   |     4 | Disable preemphasis                         |
          |------+-------+---------------------------------------------|
          |  3   |     8 | Disable precoding                           |
          |------+-------+---------------------------------------------|
          |  4   |    16 | Disable shaping                             |
          |------+-------+---------------------------------------------|
          |  6   |    64 | Disable V.34                                |
          |------+-------+---------------------------------------------|
          |  7   |   128 | Disable V.FC                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S68                   |
          |------------------------------------------------------------|
          | Type:       | Register                                     |
          |-------------+----------------------------------------------|
          | Format      | AT [cmds] S68 [cmds]                         |
          |-------------+----------------------------------------------|
          | Unit:       | Bit mapped                                   |
          |-------------+----------------------------------------------|
          | Bit | Value |                   Function                   |
          |-----+-------+----------------------------------------------|
          |  0  |     1 | Enable V.110 fallback                        |
          |-----+-------+----------------------------------------------|
          |  1  |     2 | Use fixed network rate                       |
          |-----+-------+----------------------------------------------|
          |  2  |     4 | Fix the network rate at 64Kbps               |
          |-----+-------+----------------------------------------------|
          |  3  |     8 | Route incoming analog calls to the data port |
          |-----+-------+----------------------------------------------|
          |  4  |    16 | Enable a 45-65 second link delay             |
          |-----+-------+----------------------------------------------|
          |  5  |    32 | Map B1 LED = B-channel 1 and B2 LED to       |
          |     |       | B-channel 2                                  |
          |-----+-------+----------------------------------------------|
          |  6  |    64 | Disable all blinking patterns for B-channel  |
          |     |       | LED’s                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S69                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S69 [cmds]                        |
          |--------------+---------------------------------------------|
          | Unit:        | Bit mapped                                  |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     1 | Disable Plug and Play signaling             |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                      DSR RECOGNITION                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S25=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 5                                           |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | .1 second                                   |
          |--------------+---------------------------------------------|
          | Description: | Sets DTR recognition time                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         DSR SIGNAL                         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S24=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 150                                         |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | .02 second                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the duration between pulsed DSR        |
          |              | signals when the modem is set to &S2 or     |
          |              | &S3.                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               FLOW CONTROL CHARACTER - XOFF                |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S23=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 19                                          |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XOFF   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FLOW CONTROL CHARACTER - XON                |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S22=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 17                                          |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used to represent XON    |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                    GUARD TIME DURATION                     |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S43=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 200                                         |
          |--------------+---------------------------------------------|
          | Unit:        | .02 second                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the duration of the guard time for the |
          |              | remote access sequence                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S19=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | Unidentified                                |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | Minute                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the duration in minutes for the        |
          |              | inactivity timer                            |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                       REMOTE ACCESS                        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S41=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Description: | Sets the number of allowable remote access  |
          |              | login attempts, thus enabling or disabling  |
          |              | remote access.                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               REMOTE ACCESS ESCAPE CHARACTER               |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S42=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 126                                         |
          |--------------+---------------------------------------------|
          | Range:       | Unidentified                                |
          |--------------+---------------------------------------------|
          | Unit:        | Unitdentified                               |
          |--------------+---------------------------------------------|
          | Description: | Stores the ASCII decimal code for the       |
          |              | remote access escape character.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      TRANSMIT BUFFER                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S38n [cmds]                       |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Description: | Sets the time before a forced hang up and   |
          |              | clearing of the transmit buffer when DTR    |
          |              | drops during an ARQ call.                   |
          +------------------------------------------------------------+