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       # LASAT COMMUNICATIONS A/S
       
          SAFIRE 144
       
          Card Type              Modem (synchronous/asynchronous)        
          Chipset                Unidentified                            
          Maximum Data Rate      14.4Kbps                                
          Maximum Fax Rate       14.4Kbps                                
          Data Modulation        Bell 103A/212A                          
                                                                         
                                 ITU-T V.21, V.22, V.22bis, V.23, V.32,  
                                 V.32bis                                 
          Fax Modulation         ITU-T V.17, V.21CH2, V.27, V.29         
          Error                  MNP5, MNP10, V.42, V.42bis              
          Correction/Compression 
          Fax Class              Class I & II                            
          Data Bus               Serial                                  
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |     Function      | Label |        Function        | Label |
          |-------------------+-------+------------------------+-------|
          | DC power in       |  CN1  | Telephone line out     |  CN3  |
          |-------------------+-------+------------------------+-------|
          | Serial port       |  CN2  |                        |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED  | Color |  Status  |            Condition             |
          |------+-------+----------+----------------------------------|
          |  ON  |  Red  |    On    |           Power is on            |
          |------+-------+----------+----------------------------------|
          |  ON  |  Red  |   Off    |           Power is off           |
          |------+-------+----------+----------------------------------|
          |  TR  |  Red  |    On    |        DTR signal is high        |
          |------+-------+----------+----------------------------------|
          |  TR  |  Red  |   Off    |        DTR signal is low         |
          |------+-------+----------+----------------------------------|
          |  CD  |  Red  |    On    |     Carrier signal detected      |
          |------+-------+----------+----------------------------------|
          |  CD  |  Red  |   Off    |   Carrier signal not detected    |
          |------+-------+----------+----------------------------------|
          |  CD  |  Red  | Blinking |         Phone is ringing         |
          |------+-------+----------+----------------------------------|
          | COMP |  Red  |    On    |   Modem is connected with data   |
          |      |       |          |           compression            |
          |------+-------+----------+----------------------------------|
          | COMP |  Red  |   Off    | Modem is not connected with data |
          |      |       |          |           compression            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                SUPPORTED STANDARD COMMANDS                 |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | +++, ‘comma’, A/                                           |
          |------------------------------------------------------------|
          | A, B, C, E, H, L, M, N, O, P, Q, T, V, W, X, Y, Z          |
          |------------------------------------------------------------|
          | &C, &D, &F, &G, &K, &L, &M, &P, &Q, &R, &S, &T, &V, &W,    |
          | &X, &Y, &Z                                                 |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | \A, \B, \G, \J, \K, \L, \N, \W                             |
          |------------------------------------------------------------|
          | %C, %E, %F, %L, %Q                                         |
          |------------------------------------------------------------|
          |                    Special AT Commands                     |
          |------------------------------------------------------------|
          | *H, -K, )M, -Q                                             |
          |------------------------------------------------------------|
          |                        S-Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S14, S16, S18, S21, S22, S23, S24, S25                     |
          |------------------------------------------------------------|
          | S26, S27, S28, S29, S30, S31, S32, S33, S36, S38, S39,     |
          | S46, S48, S82, S86, S91, S92, S95, S99                     |
          |------------------------------------------------------------|
          |                      V.25bis Commands                      |
          |------------------------------------------------------------|
          | CIC, CRN, CRS, DIC, RLD, RLF                               |
          |------------------------------------------------------------|
          |      Note: See MHI help file for complete information.     |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S40                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S40=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 107                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 255                                     |
          |--------------+---------------------------------------------|
          | Description: | Controls power level and break handling;    |
          |              | selects MNP extended services, link         |
          |              | negotiation, and block size.                |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          |  0   |     0 | MNP10 disabled.                             |
          |      |       |                                             |
          |      |   í 1 | MNP10 enabled.                              |
          |------+-------+---------------------------------------------|
          |  1   |     0 | MNP10 at 2400 and 1200bps disabled.         |
          |      |       |                                             |
          |      |   í 1 | MNP10 at 2400 and 1200bps enabled.          |
          |------+-------+---------------------------------------------|
          |  2   |   í 0 | Power level adjustment enabled.             |
          |      |       |                                             |
          |      |     1 | Power level adjustment disabled.            |
          |------+-------+---------------------------------------------|
          |  5,  |   000 | \K0 set.                                    |
          | 4, 3 |       |                                             |
          |      |   001 | \K1 set.                                    |
          |      |       |                                             |
          |      |   010 | \K2 set.                                    |
          |      |       |                                             |
          |      |   011 | \K3 set.                                    |
          |      |       |                                             |
          |      |   100 | \K4 set.                                    |
          |      |       |                                             |
          |      | í 101 | \K5 set.                                    |
          |------+-------+---------------------------------------------|
          | 7, 6 |    00 | MNP block size is 64 characters.            |
          |      |       |                                             |
          |      |  í 01 | MNP block size is 128 characters.           |
          |      |       |                                             |
          |      |    10 | MNP block size is 192 characters.           |
          |      |       |                                             |
          |      |    11 | MNP block size is 256 characters.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S41                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S41=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 3                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 91                                      |
          |--------------+---------------------------------------------|
          | Description: | Selects compression, auto-retrain and       |
          |              | auto-fallback/fall-forward, flow control,   |
          |              | and MNP mode.                               |
          |--------------+---------------------------------------------|
          | Note:        | Be aware that bit 6 is out of order.        |
          |--------------+---------------------------------------------|
          | Bit  | Value |                  Function                   |
          |------+-------+---------------------------------------------|
          | 1, 0 |    00 | Data compression disabled.                  |
          |      |       |                                             |
          |      |    01 | MNP5 enabled.                               |
          |      |       |                                             |
          |      |    10 | V.42bis enabled.                            |
          |      |       |                                             |
          |      |  í 11 | MNP5 and V.42bis enabled.                   |
          |------+-------+---------------------------------------------|
          | 6, 2 |  í 00 | Auto-retrain disabled.                      |
          |      |       |                                             |
          |      |    01 | Auto-retrain enabled.                       |
          |      |       |                                             |
          |      |    10 | Auto-fallback/fall-forward enabled.         |
          |------+-------+---------------------------------------------|
          |  3   |   í 0 | Flow control disabled.                      |
          |      |       |                                             |
          |      |     1 | Flow control enabled.                       |
          |------+-------+---------------------------------------------|
          |  4   |   í 0 | Stream mode for MNP.                        |
          |      |       |                                             |
          |      |     1 | Block mode for MNP.                         |
          |------+-------+---------------------------------------------|
          |  5   |     0 | Not used.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S80                   |
          |------------------------------------------------------------|
          | Format:           | AT [cmds] S80=n [cmds]                 |
          |-------------------+----------------------------------------|
          | Default:          | 1                                      |
          |-------------------+----------------------------------------|
          | Range:            | 1 - 225                                |
          |-------------------+----------------------------------------|
          | Description:      | Selects a command set and controls     |
          |                   | callback security and remote           |
          |                   | configuration.                         |
          |------------------------------------------------------------|
          |    Bit    |  Value   |              Function               |
          |------------------------------------------------------------|
          |     4 - 0     | 00001 | Not used.                          |
          |---------------+-------+------------------------------------|
          |       5       |   í 0 | AT command set enabled.            |
          |               |       |                                    |
          |               |     1 | V.25bis command set enabled.       |
          |---------------+-------+------------------------------------|
          |       6       |   í 0 | Remote configuration disabled.     |
          |               |       |                                    |
          |               |     1 | Remote configuration enabled.      |
          |---------------+-------+------------------------------------|
          |       7       |   í 0 | Callback security disabled.        |
          |               |       |                                    |
          |               |     1 | Callback security enabled.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CALLBACK PASSWORD                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Pn:xxxxx:<#>                     |
          |--------------+---------------------------------------------|
          | Description: | Changes connection password number n. n     |
          |              | must be between 0 and 4. The password must  |
          |              | be between 6 and 12 characters. If no       |
          |              | callback number is supplied, the modem will |
          |              | check for a password but will not perform a |
          |              | callback.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             CALLBACK - DISPLAY PASSWORD TABLE              |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *L [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays the list of connection passwords.  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        COUNTRY CODE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *NCn [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the factory defaults according to the  |
          |              | country specified. The next power-up or ATZ |
          |              | command will reset the modem to the         |
          |              | appropriate defaults.                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     *NC1     | Set country code for Austria.               |
          |--------------+---------------------------------------------|
          |     *NC2     | Set country code for Belgium.               |
          |--------------+---------------------------------------------|
          |     *NC3     | Set country code for Denmark.               |
          |--------------+---------------------------------------------|
          |     *NC4     | Set country code for Finland.               |
          |--------------+---------------------------------------------|
          |     *NC5     | Set country code for France.                |
          |--------------+---------------------------------------------|
          |     *NC6     | Set country code for Germany.               |
          |--------------+---------------------------------------------|
          |     *NC7     | Set country code for Ireland.               |
          |--------------+---------------------------------------------|
          |     *NC8     | Set country code for Italy.                 |
          |--------------+---------------------------------------------|
          |     *NC9     | Set country code for Luxembourg.            |
          |--------------+---------------------------------------------|
          |    *NC10     | Set country code for the Netherlands.       |
          |--------------+---------------------------------------------|
          |    *NC11     | Set country code for Norway.                |
          |--------------+---------------------------------------------|
          |    *NC12     | Set country code for Portugal.              |
          |--------------+---------------------------------------------|
          |    *NC13     | Set country code for Spain.                 |
          |--------------+---------------------------------------------|
          |    *NC14     | Set country code for Sweden.                |
          |--------------+---------------------------------------------|
          |    *NC15     | Set country code for Switzerland.           |
          |--------------+---------------------------------------------|
          |    *NC16     | Set country code for Great Britain.         |
          |--------------+---------------------------------------------|
          |    *NC20     | Set country code for Canada.                |
          |--------------+---------------------------------------------|
          |    *NC21     | Set country code for Mexico.                |
          |--------------+---------------------------------------------|
          |    *NC22     | Set country code for the United States.     |
          |--------------+---------------------------------------------|
          |    *NC40     | Set country code for Australia.             |
          |--------------+---------------------------------------------|
          |    *NC43     | Set country code for Japan.                 |
          |--------------+---------------------------------------------|
          |    *NC47     | Set country code for Singapore.             |
          |--------------+---------------------------------------------|
          |    *NC48     | Set country code for New Zealand.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#> [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Dials the telephone number indicated        |
          |              | according to any modifiers included in the  |
          |              | string.                                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      DJ      | MNP10 link will be negotiated at 1200bps    |
          |              | for this call.                              |
          |--------------+---------------------------------------------|
          |      DK      | MNP10 power level adjustment enabled for    |
          |              | this call.                                  |
          |--------------+---------------------------------------------|
          |      DL      | Re-dial last number.                        |
          |--------------+---------------------------------------------|
          |      DP      | Pulse dialing enabled.                      |
          |--------------+---------------------------------------------|
          |     DS=n     | Dial stored telephone number n.             |
          |--------------+---------------------------------------------|
          |      DT      | Tone dialing enabled.                       |
          |--------------+---------------------------------------------|
          |      DW      | Dialing resumed following dial tone         |
          |              | detection.                                  |
          |--------------+---------------------------------------------|
          |      D,      | Dialing paused for amount of time specified |
          |              | in S8 register.                             |
          |--------------+---------------------------------------------|
          |      D!      | Flash function initiated. Modem commanded   |
          |              | to go off-hook for specified time before    |
          |              | returning on-hook.                          |
          |--------------+---------------------------------------------|
          |      D@      | Wait for Quiet Answer function enabled.     |
          |              | Modem waits until a "quiet answer," a       |
          |              | ring-back signal followed by silence up to  |
          |              | the time specified in S7, is received prior |
          |              | to executing the rest of the dial string.   |
          |--------------+---------------------------------------------|
          |      D;      | Modem returned to idle state after dialing. |
          |              | The semicolon can only be placed at the end |
          |              | of the dial command.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DISPLAY BLACKLIST NUMBERS                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *B [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays the list of all the numbers on the |
          |              | blacklist and their statuses.               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DISPLAY DELAYED NUMBERS                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *D [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays the list of all delayed numbers    |
          |              | and their statuses.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            DISPLAY CONFIGURATION AND STATISTICS            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \S [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays the settings of all commands.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DISPLAY INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested about the    |
          |              | modem.                                      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Displays product identification code.       |
          |--------------+---------------------------------------------|
          |      I1      | Displays ROM checksum.                      |
          |--------------+---------------------------------------------|
          |      I2      | Tests and reports ROM checksum.             |
          |--------------+---------------------------------------------|
          |      I3      | Displays firmware revision.                 |
          |--------------+---------------------------------------------|
          |      I4      | Displays production identification.         |
          |--------------+---------------------------------------------|
          |      I5      | Displays country code.                      |
          |--------------+---------------------------------------------|
          |      I6      | Displays production identification.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   DISPLAY STORED NUMBERS                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \F [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays all stored telephone numbers.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         LINE SPEED                         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S37=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum allowable data exchange    |
          |              | rate attempted during the handshaking       |
          |              | process.                                    |
          |--------------+---------------------------------------------|
          |  í Command   |                  Function                   |
          |--------------+---------------------------------------------|
          |    S37=0     | Attempt to connect at fastest common speed. |
          |--------------+---------------------------------------------|
          |    S37=1     | Set speed to 300bps.                        |
          |--------------+---------------------------------------------|
          |    S37=2     | Set speed to 300bps.                        |
          |--------------+---------------------------------------------|
          |    S37=3     | Set speed to 300bps.                        |
          |--------------+---------------------------------------------|
          |    S37=5     | Set speed to 1200bps.                       |
          |--------------+---------------------------------------------|
          |    S37=6     | Set speed to 2400bps.                       |
          |--------------+---------------------------------------------|
          |    S37=7     | Attempt to connect with V.23.               |
          |--------------+---------------------------------------------|
          |    S37=8     | Set speed to 4800bps.                       |
          |--------------+---------------------------------------------|
          |    S37=9     | Set speed to 9600bps.                       |
          |--------------+---------------------------------------------|
          |    S37=10    | Set speed to 12Kbps.                        |
          |--------------+---------------------------------------------|
          |    S37=11    | Set speed to 14.4Kbps.                      |
          |--------------+---------------------------------------------|
          |    S37=12    | Set speed to 7200bps.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       PROTOCOL/SPEED                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Fn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the protocol and speed the modem    |
          |              | will attempt to connect at.                 |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      F0      | Auto-detect the highest common connect      |
          |              | speed.                                      |
          |--------------+---------------------------------------------|
          |      F1      | Select V.21 or Bell 103 at 300bps speed.    |
          |--------------+---------------------------------------------|
          |      F3      | Select V.23 at 75/1200bps speed.            |
          |--------------+---------------------------------------------|
          |      F4      | Select V.22 or Bell 212A at 1200bps speed.  |
          |--------------+---------------------------------------------|
          |      F5      | Select V.22bis at 2400bps speed.            |
          |--------------+---------------------------------------------|
          |      F6      | Select V.32 or V.32bis at 4800bps speed.    |
          |--------------+---------------------------------------------|
          |      F7      | Select V.32bis at 7200bps speed.            |
          |--------------+---------------------------------------------|
          |      F8      | Select V.32bis or V.32 at 9600bps speed.    |
          |--------------+---------------------------------------------|
          |      F9      | Select V.32bis at 12Kbps speed.             |
          |--------------+---------------------------------------------|
          |     F10      | Select V.32bis at 14.4Kbps speed.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      TEST MODE - PTT                       |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %TTnn [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Send PTT test signals for line tests.       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    %TT00     | Send DTMF digit 0.                          |
          |--------------+---------------------------------------------|
          |    %TT01     | Send DTMF digit 1.                          |
          |--------------+---------------------------------------------|
          |    %TT02     | Send DTMF digit 2.                          |
          |--------------+---------------------------------------------|
          |    %TT03     | Send DTMF digit 3.                          |
          |--------------+---------------------------------------------|
          |    %TT04     | Send DTMF digit 4.                          |
          |--------------+---------------------------------------------|
          |    %TT05     | Send DTMF digit 5.                          |
          |--------------+---------------------------------------------|
          |    %TT06     | Send DTMF digit 6.                          |
          |--------------+---------------------------------------------|
          |    %TT07     | Send DTMF digit 7.                          |
          |--------------+---------------------------------------------|
          |    %TT08     | Send DTMF digit 8.                          |
          |--------------+---------------------------------------------|
          |    %TT09     | Send DTMF digit 9.                          |
          |--------------+---------------------------------------------|
          |    %TT0A     | Send DTMF digit *.                          |
          |--------------+---------------------------------------------|
          |    %TT0B     | Send DTMF digit A.                          |
          |--------------+---------------------------------------------|
          |    %TT0C     | Send DTMF digit B.                          |
          |--------------+---------------------------------------------|
          |    %TT0D     | Send DTMF digit C.                          |
          |--------------+---------------------------------------------|
          |    %TT0E     | Send DTMF digit #.                          |
          |--------------+---------------------------------------------|
          |    %TT0F     | Send DTMF digit D.                          |
          |--------------+---------------------------------------------|
          |    %TT10     | Send V.21 channel 1 mark symbol.            |
          |--------------+---------------------------------------------|
          |    %TT11     | Send V.21 channel 2 mark symbol.            |
          |--------------+---------------------------------------------|
          |    %TT12     | Send V.23 backward channel mark symbol.     |
          |--------------+---------------------------------------------|
          |    %TT13     | Send V.23 forward channel mark symbol.      |
          |--------------+---------------------------------------------|
          |    %TT14     | Send V.22 originate mark symbol at 600bps.  |
          |--------------+---------------------------------------------|
          |    %TT15     | Send V.22 originate mark symbol at 1200bps. |
          |--------------+---------------------------------------------|
          |    %TT16     | Send V.22bis originate mark symbol at       |
          |              | 2400bps.                                    |
          |--------------+---------------------------------------------|
          |    %TT17     | Send V.22 answer signal with guard tone if  |
          |              | required.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  TEST MODE - PTT (CON'T)                   |
          |------------------------------------------------------------|
          | Command |                     Function                     |
          |---------+--------------------------------------------------|
          |  %TT18  | Send V.22bis answer signal with guard tone if    |
          |         | required.                                        |
          |---------+--------------------------------------------------|
          |  %TT19  | Send V.21 channel 1 space symbol.                |
          |---------+--------------------------------------------------|
          |  %TT1A  | Send V.21 channel 2 space symbol.                |
          |---------+--------------------------------------------------|
          |  %TT1B  | Send V.23 backward channel space symbol.         |
          |---------+--------------------------------------------------|
          |  %TT1C  | Send V.23 forward channel space symbol.          |
          |---------+--------------------------------------------------|
          |  %TT1D  | Send V.27ter carrier.                            |
          |---------+--------------------------------------------------|
          |  %TT1E  | Send V.29 carrier.                               |
          |---------+--------------------------------------------------|
          |  %TT20  | Send V.32 9600bps.                               |
          |---------+--------------------------------------------------|
          |  %TT21  | Send V.32bis 14.4Kbps.                           |
          |---------+--------------------------------------------------|
          |  %TT22  | Send V.17 14.4Kbps.                              |
          |---------+--------------------------------------------------|
          |  %TT30  | Send silence (on-line), i.e., go off-hook.       |
          |---------+--------------------------------------------------|
          |  %TT31  | Send V.25 answer tone.                           |
          |---------+--------------------------------------------------|
          |  %TT32  | Send 1800 Hz guard tone.                         |
          |---------+--------------------------------------------------|
          |  %TT33  | Send 1300Hz V.25 calling tone.                   |
          |---------+--------------------------------------------------|
          |  %TT34  | Send 1100Hz fax calling tone.                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               REMOTE CONFIGURATION CHARACTER               |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S202=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | 170                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 255                                     |
          |--------------+---------------------------------------------|
          | Unit:        | 1 ASCII character                           |
          |--------------+---------------------------------------------|
          | Description: | Defines the character that, when sent four  |
          |              | times within the guard time set by S12,     |
          |              | will notify the remote modem that a remote  |
          |              | configuration session has been requested.   |
          |              | Values over 127 disables the remote         |
          |              | configuration character.                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 REMOTE CONFIGURATION EXIT                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *E [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Exits remote configuration mode.            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |     REMOTE CONFIGURATION SECURITY - PASSWORD SELECTION     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *C                                |
          |--------------+---------------------------------------------|
          | Description: | Changes the password for remote             |
          |              | configuration. The user will be prompted to |
          |              | enter the old and new passwords. Passwords  |
          |              | must be exactly five characters, case       |
          |              | insensitive.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                REMOTE CONFIGURATION REQUEST                |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *R [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Requests to begin a remote configuration    |
          |              | session with the remote modem.              |
          |--------------+---------------------------------------------|
          | Note:        | The same function may be accomplished by    |
          |              | sending the remote configuration character  |
          |              | four times within the guard time set by     |
          |              | register S202.                              |
          +------------------------------------------------------------+
       
                         Proprietary V.25bis Command Set
       
          +------------------------------------------------------------+
          |                         AT COMMAND                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | CNL[cmds]                                   |
          |--------------+---------------------------------------------|
          | Description: | Executes an AT command string. The AT       |
          |              | should not be included.                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |         CALL REQUESTED NUMBER WITH IDENTIFICATION          |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | CRI<#>;xxxx                                 |
          |--------------+---------------------------------------------|
          | Description: | Dials the number given; it will ignore      |
          |              | spaces and hyphens in the string; if the    |
          |              | string is more than fifty characters long,  |
          |              | a result of INV will be returned. The xxxx  |
          |              | parameter is ignored.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   REQUEST LISTED NUMBERS                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | RLN                                         |
          |--------------+---------------------------------------------|
          | Description: | Requests the modem to return the list of    |
          |              | stored numbers; if no numbers are stored,   |
          |              | the modem will return LSN.                  |
          +------------------------------------------------------------+