
MICROCOM, INC.

DESKPORTE FAST

Card Type                    Modem (synchronous/asynchronous)
Processor                    Z80182
Processor Speed              18.4MHz
Chipset                      Microcom
Maximum Onboard Memory       64KB SRAM (32KB battery backup)/128KB Flash
                             ROM
Maximum Data Rate            28.8Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     Serial, parallel
Fax Class                    Class I
Data Modulation              Bell 103A/212A

                             ITU-T V.21, V.22, V.23, V.22bis, V.32,
                             V.32bis

                             Rockwell V.FC
Fax Modulation               Unidentified
Error Correction/Compression MNP5, MNP10, V.42, V.42bis

[Image]

                                CONNECTIONS

          Function           Label             Function            Label

  Talk/Data button                BT1      RS-232/422 port          CN3

  Originate/Answer button         BT2      DC power                 CN4

  Power switch                    BT3      Parallel port            CN5

  Line in                         CN1      LCD display              LCD

  Line out                        CN2      Volume                    R1

                        USER CONFIGURABLE SETTINGS

                 Setting                     Label          Position

  Factory configured - do not alter           JP2         Unidentified

  Factory configured - do not alter           JP4         Unidentified

  Pin 1 of serial port connected to           JP6       Pins 2 & 3 closed
  signal ground

  Pin 1 of serial port connected to           JP6       Pins 1 & 2 closed
  chassis ground

  Received signal level set to -43 dBm        JP7       Pins 1 & 2 closed

  Received signal level set to -33 dBm        JP7       Pins 2 & 3 closed

                            LINE TYPE SELECTION

        Setting              JP1/A            JP1/B            JP1/C

  Leased line (0 dBm)         Open             Open            Closed

  Permissive (-10 dBm)       Closed            Open             Open

    Programmable (-12         Open            Closed            Open
          dBm)

                        CONFIGURATION MODE FUNCTION

    Mode                               Function

      0          Normal operation of modem - sets power-up defaults for
                                   various commands

      1             Controls flow control and connect mode defaults

      2            Selects leased-line and synchronous mode options

      3                      Controls serial port signals

      4                 Controls synchronous clock and busy out

      5                 Selects echo and result code formatting

      6                    Controls various command options

      7                Selects flow control and parity checking

      8                  Controls serial port parity and speed

      9                      Configures line speed options

     10                        Performs diagnostic tests

            Note: The DeskPorte FAST modem can be configured by switches
            in eleven modes, although command configuration is preferable
            when possible. Configuration modes 1 through 9 can be stored
            in NVRAM by pressing the reset switch. Mode 0 is read on
            reset or power-up is SW2/5 is on. If SW2/5 is off, no switch
            settings will be used. Before operating, the modems switches
            should be returned to mode 0 and the appropriate settings
            made.

             CONFIGURATION MODE SELECTION

  Setting    SW1/1      SW1/2      SW1/3      SW1/4

     0        Off        Off        Off        Off

     1         On        Off        Off        Off

     2        Off         On        Off        Off

     3         On         On        Off        Off

     4        Off        Off        On         Off

     5         On        Off        On         Off

     6        Off         On        On         Off

     7         On         On        On         Off

     8        Off        Off        Off        On

     9         On        Off        Off        On

    10         On         On        On         On



                  Configuration Mode 0 - Normal Operation

                        USER CONFIGURABLE SETTINGS

                      Setting                        Label     Position

  Factory configured - do not alter                  SW2/3       Off

  Modem reloads user configuration on reset          SW2/4       Off

  Modem reloads factory configuration on reset       SW2/4        On

  Modem does not load configuration from switches    SW2/5       Off

  Modem loads configuration from switches            SW2/5        On

  Cellular phone support disabled                    SW2/6       Off

  Cellular phone support enabled                     SW2/6        On

  Command set enabled                                SW2/7       Off

  Command set disabled                               SW2/7        On

  Auto-answer enabled                                SW2/8       Off

  Auto-answer disabled                               SW2/8        On

                           COMMAND SET SELECTION

              Setting                     SW2/1               SW2/2

          Asynchronous AT                  Off                 Off

       Asynchronous V.25bis                 On                 Off

        Synchronous V.25bis                Off                 On

  Transparent synchronous, command          On                 On
           set disabled



              Configuration Mode 1 - Flow Control/Connect Mode

                        USER CONFIGURABLE SETTINGS

                      Setting                        Label     Position

  Factory configured - do not alter                  SW2/6       N/A

  Factory configured - do not alter                  SW2/7       N/A

  Factory configured - do not alter                  SW2/8       N/A

                       FLOW CONTROL SELECTION

            Setting                   SW2/1              SW2/2

  Use setting from command set         Off                Off

     Flow control disabled              On                Off

   Use bidirectional XON/XOFF          Off                On

  Use unidirectional XON/XOFF           On                On

                       CONNECT MODE SELECTION

            Setting                SW2/3        SW2/4       SW2/5

  Use setting from command set      Off          Off         Off

          Normal mode                On          Off         Off

          Direct mode               Off          On          Off

         Reliable mode               On          On          Off

       Auto-reliable mode           Off          Off          On

       LAPM reliable mode            On          Off          On

    LAPM auto-reliable mode         Off          On           On

   LAPM and MNP reliable mode        On          On           On



               Configuration Mode 2 - Leased-Line/Synchronous

                        USER CONFIGURABLE SETTINGS

                      Setting                        Label     Position

  Factory configured - do not alter                  SW2/8       N/A

                 SYNCHRONOUS AUTO-DIAL CONFIGURATION

            Setting                   SW2/1              SW2/2

  Use setting from command set         Off                Off

        Manual dial only                On                Off

    Dial first stored number           Off                On

   Dial second stored number            On                On

                            LINE TYPE SELECTION

             Setting                  SW2/3        SW2/4         SW2/5

   Use setting from command set        Off          Off           Off

        Switched line type             On           Off           Off

         Leased line type              Off           On           Off

  Leased line type, modem will go      On            On           Off
    off hook for 6 seconds when
  Originate/Answer button pushed

                 SYNCHRONOUS MODE CTS SIGNAL CONFIGURATION

              Setting                     SW2/6               SW2/7

   Use setting from command set            Off                 Off

          CTS follows RTS                  On                  Off

          CTS forced high                  Off                 On

  CTS and RTS emulate half-duplex          On                  On
            connection



                 Configuration Mode 3 - Serial Port Signals

                          CD SIGNAL CONFIGURATION

             Setting                     SW2/1               SW2/2

   Use setting from command set           Off                 Off

          CD forced high                   On                 Off

            CD normal                     Off                  On

     CD forced high except at              On                  On
            disconnect

                     DSR AND CTS SIGNAL CONFIGURATION

           Setting                 SW2/3         SW2/4          SW2/5

   Use setting from command         Off           Off            Off
             set

   DSR and CTS forced high          On            Off            Off

   CTS follows CD; if &C is         Off            On            Off
  not set to 1 then DSR also
   follows CD, otherwise it
          follows OH

    DSR and CTS follow CD           On             On            Off

  DSR normal, CTS forced high       Off           Off             On

      DSR and CTS normal            On            Off             On

                         DTR SIGNAL CONFIGURATION

           Setting                SW2/6         SW2/7           SW2/8

   Use setting from command        Off           Off             Off
             set

         DTR ignored               On            Off             Off

  Modem enters command state       Off            On             Off
         on low DTR

  Modem goes on hook on low        On             On             Off
             DTR

   Modem resets on low DTR         Off           Off             On



                Configuration Mode 4 - Clock Source/Busy Out

                        USER CONFIGURABLE SETTINGS

                      Setting                        Label     Position

  Factory configured - do not alter                  SW2/5       N/A

  Factory configured - do not alter                  SW2/6       N/A

  Factory configured - do not alter                  SW2/7       N/A

  Factory configured - do not alter                  SW2/8       N/A

                 LOOPBACK TEST AND BUSY OUT CONFIGURATION

             Setting                     SW2/1               SW2/2

  Use setting from command set            Off                 Off

      Pins 18 and 21 have no              On                  Off
            function

  Busy Out when pin 18 is high,           Off                  On
  perform local analog loopback
        test on high DTR

  Perform local analog loopback           On                   On
    test when pin 18 is high,
   remote digital loopback test
       when pin 21 is high

                       CLOCK SOURCE SELECTION

            Setting                   SW2/3              SW2/4

  Use setting from command set         Off                Off

     Internal clock source              On                Off

     External clock source             Off                On

     Slave to remote clock              On                On



                  Configuration Mode 5 - Echo/Result Codes

                        USER CONFIGURABLE SETTINGS

                      Setting                        Label     Position

  Factory configured - do not alter                  SW2/7       N/A

  Factory configured - do not alter                  SW2/8       N/A

                     COMMAND ECHO CONFIGURATION

            Setting                   SW2/1              SW2/2

  Use setting from command set         Off                Off

     Command echo disabled              On                Off

      Command echo enabled             Off                On

                         RESULT CODE CONFIGURATION

             Setting                     SW2/3               SW2/4

   Use setting from command set           Off                 Off

       Result codes enabled               On                  Off

      Result codes disabled               Off                  On

      Result codes enabled on             On                   On
          originate only

                        RESULT CODE TYPE SELECTION

             Setting                    SW2/5                SW2/6

  Use setting from command set           Off                  Off

     Modem will send verbose              On                  Off
          result codes

     Modem will send numeric              On                   On
          result codes



                       Configuration Mode 6 - Various

                ERROR CORRECTION RESULT CODE CONFIGURATION

             Setting                      SW2/1               SW2/2

   Use setting from command set            Off                 Off

       Use standard format                 On                  Off

    Use error correction result            Off                 On
   codes with 9600 given for all
    speeds between 4800bps and
              12Kbps

    Use error correction result            On                  On
   codes with real speed given

                     SERIAL PORT SPEED LOCK SELECTION

             Setting                    SW2/3                SW2/4

  Use setting from command set           Off                  Off

    Serial port speed locked              On                  Off

    Serial port speed follows             On                   On
          connect speed

                             BREAK TYPE

            Setting                   SW2/5              SW2/6

  Use setting from command set         Off                Off

      Use setting for \K0               On                Off

      Use setting for \K1              Off                On

      Use setting for \K5               On                On

                             INACTIVITY TIMER

             Setting                     SW2/7               SW2/8

   Use setting from command set           Off                 Off

    Inactivity timer disabled              On                 Off

     Set inactivity timer to 2            Off                  On
             minutes

    Set inactivity timer to 15             On                  On
             minutes



            Configuration Mode 7 - Flow Control/Parity Checking

                        USER CONFIGURABLE SETTINGS

                      Setting                        Label     Position

  Factory configured - do not alter                  SW2/6       N/A

  Factory configured - do not alter                  SW2/7       N/A

  Factory configured - do not alter                  SW2/8       N/A

                               FLOW CONTROL

            Setting                 SW2/1         SW2/2          SW2/3

  Use setting from command set       Off           Off            Off

     Flow control disabled            On           Off            Off

   Bidirectional XON/XOFF flow       Off            On            Off
        control enabled

     CTS flow control by DCE          On            On            Off
            enabled

   Bidirectional RTS/CTS flow        Off           Off            On
        control enabled

  Unidirectional XON/XOFF flow        On           Off            On
     control by DCE enabled

      CTS forced low until           Off            On            On
    connection then CTS flow
         control by DCE

   Bidirectional RTS/CTS flow         On            On            On
    control after connection

             ESCAPE AND FLOW CONTROL CHARACTER PARITY CHECKING

             Setting                      SW2/4               SW2/5

   Use setting from command set            Off                 Off

  Parity checking of flow control          On                  Off
  and escape characters disabled

      Flow control and escape              Off                 On
   characters will be processed
   only if their parity matches
           serial port

     Escape characters will be             On                  On
  processed only if their parity
       matches serial port



              Configuration Mode 8 - Serial Port Parity/Speed

                        USER CONFIGURABLE SETTINGS

                      Setting                        Label     Position

  Factory configured - do not alter                  SW2/8       N/A

                     SERIAL PORT PARITY SELECTION

             Setting               SW2/1    SW2/2    SW2/3     SW2/4

  Use setting from command set      Off      Off      Off       Off

   Seven data bits, odd parity      On       Off      Off       Off

  Seven data bits, even parity      Off      On       Off       Off

  Seven data bits, MARK parity      On       On       Off       Off

  Seven data bits, SPACE parity     Off      Off       On       Off

   Eight data bits, no parity       On       Off       On       Off

   Eight data bits, odd parity      Off      On        On       Off

  Eight data bits, even parity      On       On        On       Off

  Eight data bits, MARK parity      Off      Off      Off       On

                  LOCAL SERIAL PORT SPEED SELECTION

            Setting                SW2/5        SW2/6       SW2/7

  Use setting from command set      Off          Off         Off

   2400bps serial port speed         On          Off         Off

   4800bps serial port speed        Off          On          Off

   9600bps serial port speed         On          On          Off

   19.2Kbps serial port speed       Off          Off          On

   38.4Kbps serial port speed        On          Off          On

   57.6Kbps serial port speed       Off          On           On

  115.2Kbps serial port speed        On          On           On



                     Configuration Mode 9 - Line Speed

                        USER CONFIGURABLE SETTINGS

                      Setting                        Label     Position

  Factory configured - do not alter                  SW2/8       N/A

                        LINE SPEED SELECTION

            Setting                SW2/1        SW2/2       SW2/3

  Use setting from command set      Off          Off         Off

       2400bps line speed            On          Off         Off

       4800bps line speed           Off          On          Off

       9600bps line speed            On          On          Off

      14.4Kbps line speed           Off          Off          On

      19.2Kbps line speed            On          Off          On

       24Kbps line speed            Off          On           On

      28.8Kbps line speed            On          On           On

                       SPEED MATCHING CONFIGURATION

             Setting                     SW2/4               SW2/5

  Use setting from command set            Off                 Off

     Modem will match connect             On                  Off
             speeds.

    Modem will connect only at            Off                  On
         current speed.

  Modem will use ITU-T automode           On                   On
        to match speeds.

                  LINE SPEED DETERMINATION CONFIGURATION

             Setting                     SW2/6                SW2/7

   Use setting from command set           Off                  Off

  Line speed determined by serial          On                  Off
            port speed

  Line speed determined by user           Off                  On



                  Configuration Mode 10 - Diagnostic Tests

[Image]

                    Diagram of switch position indicator

                              TOGGLE SWITCHES

        Function           Label             Function              Label

  Start or stop test in         BT1      Start or stop test in     SW2/3
  progress                               progress

                        USER CONFIGURABLE SETTINGS

                  Setting                     Label          Position

  Local digital loopback test enabled         SW2/4             On

  Local digital loopback test disabled        SW2/4            Off

  Local analog loopback test enabled          SW2/5             On

  Local analog loopback test disabled         SW2/5            Off

  Local analog loopback with self-test        SW2/6             On
  enabled

  Local analog loopback with self-test        SW2/6            Off
  disabled

  Display switch positions on front panel     SW2/7             On
  LCD

  Do not display switch positions on          SW2/7            Off
  front panel LCD

  Clear all switch positions                  SW2/8             On

  Normal operation                            SW2/8            Off

            Note: For information on SW2/7 please see the diagram above.
            Lit segments indicate that a switch is on, and unlit ones
            indicate a switch that is off. Switch settings may also be
            displayed with the %S command.

            The usage of SW2/8 is to clear all test modes. All switches
            should be in the off position before turning SW2/8 on.

                           COMMAND SET SELECTION

              Setting                     SW2/1               SW2/2

          Asynchronous AT                  Off                 Off

       Asynchronous V.25bis                On                  Off

        Synchronous V.25bis                Off                 On

      Synchronous, command set             On                  On
             disabled

                             DIAGNOSTIC LED(S)

    LED          Color           Status                Condition

    TST       Unidentified         On          System error has occurred

    TST       Unidentified         Off            Modem is functioning
                                                       normally

    TST       Unidentified      Blinking       Modem has detected a data
                                                error or is retraining

    DCD       Unidentified         On           Carrier signal detected

    DCD       Unidentified         Off        Carrier signal not detected

    DTR       Unidentified         On             DTR signal is high

    DTR       Unidentified         Off             DTR signal is low

    RXD       Unidentified      Blinking        Modem is receiving data

    RXD       Unidentified         Off        Modem is not receiving data

    TXD       Unidentified      Blinking      Modem is transmitting data

    TXD       Unidentified         Off         Modem is not transmitting
                                                         data

                        SUPPORTED STANDARD COMMANDS

                             Basic AT Commands

  +++, comma, A/

  A, B, E, H, I, L, M, O, P, Q, T, V, W, X, Y, Z

  &D, &F, &G, &M, &P, &T, &W, &X, &Y, &Z

                           Extended AT Commands

  \A, \B, \C, \E, \J, \N, \Q, \T

  %A, %C, %E, %F, %G

                             V.25 Bis Commands

  CIC, CRN, CRS, DIC, INC, INV, LSN, PRN, RLN, VAL

                            Special AT Commands

  -J, -K, *H, )M, @M, :E

                                S-Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12, S14, S16, S18, S22,
  S23, S25, S26, S27

            Note: See MHI documentation for complete information.



                         Proprietary AT Command Set

                                AUTO-LOGON

  Type:           Immediate

  Format:         AT [cmds] $An [cmds]

  Default:        0

  Range:          0 - 9

  Description:    Performs the auto-logon sequence stored at memory
                  location n.

                          BIT-MAPPED REGISTER S21

  Format                 AT [cmds] S21=n [cmds]

  Default:               Unidentified

  Range:                 0-253

  Unit:                  Bit-mapped

  Description:           Selects jack type, CTS, RTS, DCD, and DSR
                         signals, low DTR action, and the long space
                         disconnect function.

    Bit       Value                          Function

     0              0    Not used.

   2, 1             00   CTS follows RTS in data mode; RTS is ignored in
                         command mode.
                    01
                         CTS forced high, RTS is ignored.
                   10
                         ITU-T V.13 used to simulate half-duplex modes on
                         full-duplex connections.

   4, 3             00   DTR signal ignored.

                    01   Modem goes to command mode on low DTR.

                    10   Modem disconnects on low DTR; Auto-Answer is
                         disabled.
                   11
                         Modem is initialized on low DTR.

     5               0   DCD forced high.

                    1    DCD normal.

     6              0    Not used.

     7               0   Long space disconnect function disabled.

                    1    Long space disconnect function enabled.

                         BIT-MAPPED REGISTER :T15

  Format:               AT [cmds] :T15=n [cmds]

  Default:              133

  Range:                0 - 229

  Description:          Controls CTS, RTS, and CD signals, synchronous
                        clocks, and V.32 answer tones.

      Bit        Value                        Function

       0               0   CTS normal during synchronous and direct
                           asynchronous mode retrains.
                      1
                           CTS forced low during synchronous and direct
                           asynchronous mode retrains.

       1              0    Not used.

       2               0   When &R is set to 0 or 2, RTS is ignored when
                           not connected.
                      1
                           When &R is set to 0 or 2, CTS follows RTS when
                           not connected.

       3              0    Not used.

       4              0    Not used.

       5               0   Synchronous clock disabled when not connected.

                      1    Synchronous clock enabled when not connected.

       6               0   CD follows link negotiation status.

                      1    When &C is set to 1, CD follows carrier.

       7               0   V.32 answer tone phase is normal.

                      1    V.32 answer tone phase may be reversed.

                         BIT-MAPPED REGISTER :T26

  Format:            AT [cmds] :T26=n [cmds]

  Default:           0

  Range:             0 - 3

  Description:       Controls billing delay and V.32 answer tone length.

     Bit       Value                        Function

      0             0   2-second billing delay enabled.

                   1    2-second billing delay disabled.

      1             0   Normal V.32 answer tone length.

                   1    Short V.32 answer tone length.

                                   BREAK TYPE

  Type:                  Configuration

  Format:                AT [cmds] \Kn [cmds]

  Description:           Configures the response the modem performs in
                         response to a received break signal.

   Command      Break from DTE     Break from         Modem        Break from
                                       DTE        receives \B     remote modem
                Reliable/Normal
                     mode         Direct mode

     \K0        Enter command     Send break to   Buffers         Buffers
                mode, do not      remote modem    cleared and     cleared and
                send break to     immediately,    break sent to   break sent to
                remote modem.     then enter      remote modem.   DTE.
                                  command mode.

     \K1        Buffers cleared   Send break to   Buffers         Buffers
                and break sent    remote modem    cleared and     cleared and
                to remote         immediately.    break sent to   break sent to
                modem.                            remote modem.   DTE.

     \K2        Enter command     Send break to   Send break to   Send break to
                mode, do not      remote modem    remote modem    DTE
                send break to     immediately,    immediately.    immediately.
                remote modem.     then enter
                                  command mode.

     \K3        Send break to     Send break to   Send break to   Send break to
                remote modem      remote modem    remote modem    DTE
                immediately.      immediately.    immediately.    immediately.

     \K4        Enter command     Send break to   Send break to   Break sent
                mode, do not      remote modem    remote modem    with received
                send break to     immediately,    with            data to the
                remote modem.     then enter      transmitted     DTE.
                                  command mode.   data.

     \K5        Send break with   Send break to   Send break to   Break sent
                transmitted       remote modem    remote modem    with received
                data.             immediately.    with            data to the
                                                  transmitted     DTE.
                                                  data.

                            CALL RESTORAL TIMER

  Type:                  Configuration

  Format:                AT [cmds] )Hn [cmds]

  Default:               0

  Range:                 0 - 255

  Unit:                  1 minute

  Description:           Sets the amount of time that the modem will
                         attempt to reconnect to a MNP reliable mode call
                         that has terminated abnormally. Setting )H to 0
                         disables this feature. If the modem reconnects
                         successfully, the call will proceed as if it did
                         not disconnect.

                               CALL SECURITY

  Type:                 Configuration

  Format:               AT [cmds] $Gn [cmds]

  Description:          Selects whether the modem will use call security
                        procedures on incoming connections.

        Command                             Function

          $G0           Call security disabled.

          $G1           Call security enabled.

                  CALL SECURITY - DISPLAY PASSWORD TABLE

  Type:            Immediate

  Format:          AT [cmds] $I [cmds]

  Description:     Displays the list of user IDs, passwords, and
                   permission levels.

                      CALL SECURITY - LOGON SEQUENCE

  Type:                 Configuration

  Format:               AT [cmds] $Ln [cmds]

  Description:          Changes the logon sequence n. Only sequences 5
                        through 9 are user configurable. The user will be
                        prompted to enter the new logon sequence using
                        the commands listed below. Errors will be
                        indicated after the sequence by caret characters
                        underneath the problem section.

        Command                             Function

          An            Aborts the call if the last string specified to
                        wait for is not received in n seconds.

           B            Modem compares the users password to the
                        password table. If it does not match the user is
                        given two more tries, then disconnects. If the
                        passwords match the modem acts according to the
                        stored permission level.

           C            Modem waits for 15 seconds for the remote modem
                        to disconnect. If it does not then the local
                        modem disconnects, waits five seconds, then calls
                        the user at the number entered. If no number was
                        entered the modem calls the number stored at the
                        location matching the user number.

          Dn            Delays for n seconds.

          Nn            Waits for the user to enter his user ID. The
                        following options are available:

                           Option                   Function

                              0         Entered characters are not
                                        echoed.

                              1         Entered characters are echoed.

                              2         Entered characters are echoed as
                                        periods.

          Pn            Waits for the user to enter his password. The
                        following options are available:

                           Option                   Function

                              0         Entered characters are not
                                        echoed.

                              1         Entered characters are echoed.

                              2         Entered characters are echoed as
                                        periods.

                  CALL SECURITY - LOGON SEQUENCE (CONT)

     Command                              Function

        Rn          Restarts the logon sequence if the last string
                    specified to wait for is not received in n seconds.

        Sn          Skips to the next section of the logon sequence if
                    the last string specified to wait for is not received
                    in n seconds.

        Vn          Waits for the user to enter his phone number for a
                    callback sequence. The following options are
                    available:

                       Option                     Function

                          0          Entered characters are not echoed.

                          1          Entered characters are echoed.

                          2          Entered characters are echoed as
                                     periods.

        Z           Modem compares the users password to the password
                    table. If it does not match the user is given two
                    more tries, then disconnects. If the passwords match
                    the sequence continues.

        &n          Calls the user back with logon sequence n.

        +n          Continue with logon sequence n.

     xxxxx        Sends the string xxxxx to the calling modem. Control
                    characters (including carriage returns) may be
                    entered by preceding the character with a caret.)

     "xxxxx"        Waits to receive the string xxxxx from the calling
                    modem.

                    CALL SECURITY - PASSWORD SELECTION

  Type:                  Configuration

  Format:                AT [cmds] $Hn

                         (prompt) AS #n: xxxxxxxx, yyyyyyyy, a

  Description:           Sets the user ID, password, and permission level
                         for user number n. The xxxxxxxx field indicates
                         the user ID, the yyyyyyyy the password, and the
                         a is the permission level. n must be between 1
                         and 40.

       Permission                            Function

          a=1             User will be connected if correct user ID and
                          password are entered.

          a=2             User will be called back at stored phone number
                          n.

          a=3             User will be prompted to enter a phone number
                          at which to be called back. If number is not
                          entered, user will be called back at stored
                          phone number n.

                   CD, CTS, AND DSR SIGNAL CONNECT TIMER

  Type:                   Register

  Format:                 AT [cmds] :T14=n [cmds]

  Default:                0

  Range:                  0 - 255

  Unit:                   .1 second

  Description:            Sets the amount time before or after the
                          connect message that CD, CTS, and DSR will be
                          brought high.

                      CD, CTS, AND DSR SIGNAL TIMING

  Type:                  Configuration

  Format:                AT [cmds] @Cn [cmds]

  Description:           Selects whether the CD, CTS, and DSR signals are
                         brought high before or after the connect
                         message.

        Command                              Function

          @C0             CD, CTS, and DSR brought high after connect
                          message.

          @C1             CD, CTS, and DSR brought high before connect
                          message.

                                 CD SIGNAL

  Type:          Configuration

  Format:        AT [cmds] &Cn [cmds]

  Description:   Controls the behaviour of the CD signal.

    Command                              Function

      &C0        CD forced high.

      &C1        CD normal.

      &C2        CD forced high except at disconnect.

                              CD SIGNAL DELAY

  Type:                 Configuration

  Format:               AT [cmds] :Un [cmds]

  Default:              0

  Range:                0 - 255

  Unit:                 12.5 mS

  Description:          Selects the amount of time that the modem delays
                        before it brings the CD signal high.

  Note:                 This command only takes effect if :R is set to 1.

                                COMMAND SET

  Type:          Configuration

  Format:        AT [cmds] -Hn [cmds]

  Description:   Selects whether the modem will accept commands.

    Command                              Function

      -H0         Command sets enabled.

      -H1         Command sets disabled.

                          CONNECT SPEED MATCHING

  Type:                 Configuration

  Format:               AT [cmds] %Ln [cmds]

  Description:          Selects whether the modem will attempt to match
                        the connect speed of the remote modem.

        Command                              Function

          %L0            Modem will connect at speeds supported by the
                         protocol selected only.

          %L1            Modem will match connect speeds.

          %L2            Modem will connect only at current speed.

          %L3            Modem will use ITU-T automode to match speeds.

               CONNECTION SECURITY - DISPLAY PASSWORD TABLE

  Type:          Immediate

  Format:        AT [cmds] $N [cmds]

  Description:   Displays the list of connection passwords.

       CONNECTION SECURITY - PASSWORD SELECTION (ASYNCHRONOUS MODE)

  Type:                  Configuration

  Format:                AT [cmds] %In [cmds]

  Description:           Changes connection password number n. n must be
                         between 0 and 4. The user will be prompted to
                         enter the old and new passwords. Passwords must
                         be exactly five characters, case insensitive.

        CONNECTION SECURITY - PASSWORD SELECTION (SYNCHRONOUS MODE)

  Type:                  Configuration

  Format:                AT [cmds] %In;xxxxx;yyyyy [cmds]

  Description:           Changes connection password number n. n must be
                         between 0 and 4. The xxxxx represents the main
                         security password, and the yyyyy is the new
                         connection password. Passwords must be exactly
                         five characters, case insensitive.

                    CONNECTION SECURITY - PASSWORD SEND

  Type:                  Configuration

  Format:                AT [cmds] $Mn [cmds]

  Description:           Selects how the modem will attempt to connect to
                         a secure system.

        Command                              Function

          $M0             Modem does not send connection password.

          $M1             Modem sends connection password 0. If password
                          does not match any of the remote modems
                          connection passwords, the modem disconnects.

          $M2             Modem sends connection password 0. If password
                          does not match any of the remote modems
                          connection passwords, the remote modem uses
                          logon sequence 5 to give the user three tries
                          to enter a connection password. If this fails,
                          the modem disconnects.

                              CTS DELAY TIMER

  Type:                   Register

  Format:                 AT [cmds] :T16=n [cmds]

  Default:                0

  Range:                  0 - 255

  Unit:                   12.5 mS

  Description:            Sets the amount of time that the modem waits
                          after a connection has been made and CD and DSR
                          have gone high that the modem brings CTS high.

                             CTS SIGNAL DELAY

  Type:                 Configuration

  Format:               AT [cmds] :Vn [cmds]

  Default:              0

  Range:                0 - 255

  Unit:                 12.5 mS

  Description:          Selects the amount of time that the modem delays
                        before it brings the CTS signal high.

                                   DIAL

  Type:                  Immediate

  Format:                AT [cmds] D<#> [cmds]

  Description:           Dials the telephone number indicated according
                         to any modifiers included in the string.

        Command                              Function

          DA             MNP10 link will be negotiated at 4800bps for
                         this call.

          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.

          DM             Make a LAPM reliable mode connection this call.

          DNn            If the dial attempt fails, the modem will
                         attempt to dial stored number n.

          DO             This call will be set for a cellular phone. Same
                         as executing the following command: AT \N2 )M1
                         :E0 @M18 *H1

          DP             Pulse dialing enabled.

          DQ             Make an LAPM auto-reliable mode connection this
                         call.

          DR             Answer mode enabled; originate mode disabled
                         following handshake initiation.

          DS             Dial the first stored telephone number.

          DT             Tone dialing enabled.

          DU             Make a direct mode connection this call.

          DV             Make an LAPM or MNP reliable mode connection
                         this call.

          DW             Dialing resumed following dial tone detection.

          DX             Make an auto-reliable mode connection this call.

          DY             Make an MNP reliable mode connection this call.

          DZ             Make a normal mode connection this call.

          D,             Dialing paused for amount of time specified in
                         S8 register.

          D/n            Dial stored telephone number n.

          D!             Flash function initiated. Modem commanded to go
                         off-hook for specified time before returning
                         on-hook.

          D+n            Perform logon sequence n after connecting.

          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$             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.

                              DIAL REPEATEDLY

  Type:          Immediate

  Format:        AT [cmds] -D<#> [cmds]

  Description:   Dials the number indicated up to nine times.

                          DISCONNECT BUFFER DELAY

  Type:                  Configuration

  Format                 AT [cmds] %Dn [cmds]

  Default:               0

  Range:                 0-255

  Unit:                  1 second

  Description:           Sets maximum duration allowed during buffered
                         data calls for modem to perform clearing
                         functions after losing carrier-signal or
                         receiving a clear call signal from the remote
                         modem and before initiating hang-up process.

                   DISPLAY CONFIGURATION AND STATISTICS

  Type:                Immediate

  Format:              AT [cmds] \S [cmds]

  Description:         Displays the settings of all commands and
                       statistics about the current connection.

                         DISPLAY FIRMWARE VERSION

  Type:          Immediate

  Format:        AT [cmds] %V [cmds]

  Description:   Displays the current firmware version.

                             DISPLAY REGISTERS

  Type:          Immediate

  Format:        AT [cmds] %Rn [cmds]

  Description:   Displays all status registers.

    Command                              Function

      %R0         Displays all S registers.

      %R1         Displays all :T registers.

                       DISPLAY ROM BOOTSTRAP VERSION

  Type:          Immediate

  Format:        AT [cmds] %V [cmds]

  Description:   Displays the current ROM bootstrap version.

                          DISPLAY STORED NUMBERS

  Type:          Immediate

  Format:        AT [cmds] \F [cmds]

  Description:   Displays all stored telephone numbers.

                    DISPLAY STORED SWITCH CONFIGURATION

  Type:                  Immediate

  Format:                AT [cmds] -X [cmds]

  Description:           Displays the stored switch configuration. See
                         the switch settings for more information.

                          DISPLAY SWITCH SETTINGS

  Type:          Immediate

  Format:        AT [cmds] %Sn [cmds]

  Description:   Displays the settings of SW1 and SW2.

    Command                              Function

      %S0         Display settings of SW1/1-SW1/4.

      %S1         Display settings of SW2/1-SW2/8.

                           DSR DISCONNECT TIMER

  Type:               Register

  Format:             AT [cmds] :T22=n [cmds]

  Default:            34

  Range:              0 - 255

  Unit:               12.5 mS

  Description:        Sets the amount of time that the modem waits after
                      disconnecting to lower DSR.

                            DSR AND CTS SIGNALS

  Type:                  Configuration

  Format:                AT [cmds] \Dn [cmds]

  Description:           Controls the behaviour of the DSR and CTS
                         signals.

        Command                              Function

          \D0            DSR and CTS forced high.

          \D1            CTS follows CD. If &C is not set to 1 then DSR
                         also follows CD, otherwise it follows OH.

          \D2            DSR and CTS follow CD.

          \D3            DSR normal, CTS forced high.

          \D4            DSR and CTS normal.

                             DSR SIGNAL DELAY

  Type:                 Configuration

  Format:               AT [cmds] :Vn [cmds]

  Default:              0

  Range:                0 - 255

  Unit:                 12.5 mS

  Description:          Selects the amount of time that the modem delays
                        before it brings the DSR signal high.

                             ENQ/ACK PROTOCOL

  Type:          Configuration

  Format:        AT [cmds] \Hn [cmds]

  Description:   Selects the Hewlett-Packard ENQ/ACK protocol.

    Command                              Function

      \H0         ENQ/ACK protocol disabled.

      \H1         ENQ/ACK protocol enabled in terminal mode.

      \H2         ENQ/ACK protocol enabled in host mode.

             ESCAPE AND FLOW CONTROL CHARACTER PARITY CHECKING

  Type:                  Configuration

  Format:                AT [cmds] -Pn [cmds]

  Description:           Selects whether the modem checks the parity of
                         incoming escape and flow control characters.

        Command                              Function

          -P0             Parity checking of flow control and escape
                          characters disabled.

          -P1             Flow control and escape characters will be
                          processed only if their parity matches serial
                          port.

          -P2             Escape characters will be processed only if
                          their parity matches serial port.

                           EXTENDED RESULT CODES

  Type:                  Configuration

  Format:                AT [cmds] \Vn [cmds]

  Description:           Selects what form of result codes will be
                         issued.

        Command                              Function

          \V0            Extended result codes disabled.

          \V1            /REL added to reliable mode connections;
                         CONNECT/9600 given for all speeds between
                         4800bps and 12Kbps.

          \V2            Error correction protocol result codes enabled;
                         CONNECT/9600 given for all speeds between
                         4800bps and 12Kbps

          \V3            /REL added to reliable mode connections when
                         verbose result codes are used; standard numeric
                         result codes are used.

          \V4            Error correction protocol result codes enabled.

                              FIRMWARE UPLOAD

  Type:          Immediate

  Format:        AT [cmds] ^C1 [cmds]

  Description:   Initiates a transfer of a new firmware file.

                              FIRMWARE UPLOAD

  Type:          Immediate

  Format:        AT [cmds] ^H [cmds]

  Description:   Initiates an ASCII transfer of a new firmware file.

                       FLOW CONTROL - MODEM TO MODEM

  Type:          Configuration

  Format:        AT [cmds] \Gn [cmds]

  Description:   Selects the type of modem-to-modem flow control used.

    Command                              Function

      \G0        Flow control disabled.

      \G1        Bidirectional flow control enabled.

      \G2        Unidirectional flow control enabled.

                   FLOW CONTROL CHARACTER - XOFF PRIMARY

  Type:          Register

  Format:        AT [cmds] :T10=n [cmds]

  Default:       19

  Range:         0-255

  Unit:          ASCII

  Description:   Sets the primary XOFF character.

                  FLOW CONTROL CHARACTER - XOFF SECONDARY

  Type:          Register

  Format:        AT [cmds] :T12=n [cmds]

  Default:       251

  Range:         0-255

  Unit:          ASCII

  Description:   Sets the secondary XOFF character.

                   FLOW CONTROL CHARACTER - XON PRIMARY

  Type:          Register

  Format:        AT [cmds] :T9=n [cmds]

  Default:       17

  Range:         0-255

  Unit:          ASCII

  Description:   Sets the primary XON character.

                  FLOW CONTROL CHARACTER - XON SECONDARY

  Type:          Register

  Format:        AT [cmds] :T11=n [cmds]

  Default:       249

  Range:         0-255

  Unit:          ASCII

  Description:   Sets the secondary XON character.

                           ITU-T AUTOMODE TIMER

  Type:                  Register

  Format:                AT [cmds] :T13=n [cmds]

  Default:               15

  Range:                 0 - 255

  Unit:                  .1 second

  Description:           Sets the amount of time the modem attempts to
                         connect with ITU-T automode before
                         disconnecting.

                         KERMIT AND UUCP PROTOCOLS

  Type:          Configuration

  Format:        AT [cmds] :Kn [cmds]

  Description:   Controls the Kermit and UUCP transfer protocols.

    Command                              Function

      :K0         Kermit and UUCP protocols disabled.

      :K1         Kermit protocol enabled.

      :K2         UUCP G protocol enabled.

                           KERMIT MARK CHARACTER

  Type:                  Configuration

  Format:                AT [cmds] :Qn [cmds]

  Default:               1

  Range:                 0 - 31

  Unit:                  1 ASCII character

  Description:           Sets the character that will be used as the
                         beginning of packet marker when in Kermit
                         protocol mode.

                                LINE SPEED

  Type:           Configuration

  Format:         AT [cmds] %Bn [cmds]

  Description:    Sets the speed that the modem will communicate with the
                  DTE.

     Command                             Function

      %B75        Sets the serial port to 75bps.

      %B300       Sets the serial port to 300bps.

      %B600       Sets the serial port to 600bps.

     %B1200       Sets the serial port to 1200bps.

     %B2400       Sets the serial port to 2400bps.

     %B4800       Sets the serial port to 4800bps.

     %B7200       Sets the serial port to 7200bps.

     %B9600       Sets the serial port to 9600bps.

     %B12000      Sets the serial port to 12Kbps.

     %B14400      Sets the serial port to 14.4Kbps.

     %B19200      Sets the serial port to 19.2Kbps.

     %B16800      Sets the serial port to 38.4Kbps.

     %B19200      Sets the serial port to 57.6Kbps.

     %B21600      Sets the serial port to 21.6Kbps.

     %B24000      Sets the serial port to 24Kbps.

     %B26400      Sets the serial port to 26.4Kbps.

     %B28800      Sets the serial port to 28.8Kbps.

                                 LINE TYPE

  Type:                  Configuration

  Format:                AT [cmds] &Ln [cmds]

  Description:           Selects what type of line the modem is connected
                         to and whether it will attempt to automatically
                         re-connect.

        Command                              Function

          &L0            Modem is connected to switched line.

          &L1            Modem is connected to 2-wire leased line.

          &L2            Modem is connected to 2-wire leased line. After
                         6 seconds of receiving no input, the modem goes
                         off-hook and attempts to connect.

                          LOCAL SERIAL PORT SPEED

  Type:           Configuration

  Format:         AT [cmds] $Bn [cmds]

  Description:    Sets the speed that the modem will communicate with the
                  DTE.

     Command                             Function

      $B75        Sets the serial port to 75bps.

      $B300       Sets the serial port to 300bps.

      $B600       Sets the serial port to 600bps.

     $B1200       Sets the serial port to 1200bps.

     $B2400       Sets the serial port to 2400bps.

     $B4800       Sets the serial port to 4800bps.

     $B9600       Sets the serial port to 9600bps.

     $B19200      Sets the serial port to 19.2Kbps.

     $B38400      Sets the serial port to 38.4Kbps.

     $B57600      Sets the serial port to 57.6Kbps.

    $B115200      Sets the serial port to 115.2Kbps.

                     LOCAL SERIAL PORT SPEED MATCHING

  Type:                  Configuration

  Format:                AT [cmds] %Gn [cmds]

  Description:           Selects whether the speed of the modems port
                         will be changed to match the local serial port,
                         or if the user must do it by hand.

        Command                              Function

          %G0            Speed changed automatically.

          %G1            User must change speed with %B command.

                       LOCAL SERIAL PORT SPEED RESET

  Type:                Configuration/Immediate

  Format:              AT [cmds] %Un [cmds]

  Description:         Selects when the speed of the serial port may
                       change.

  Note:                When the serial port speed is changed from
                       38.4Kbps, a %U command must be entered for the
                       modem to recognize the new speed.

       Command                              Function

         %U0            Serial port speed may change at any time. Modem
                        will automatically adjust.

         %U1            Modem will only adapt to serial port speed change
                        when %U1 is entered.

         %U2            Serial port speed may change at any time. Modem
                        will automatically adjust.

                          LOGON SEQUENCE DISPLAY

  Type:             Configuration

  Format:           AT [cmds] $Vn [cmds]

  Description:      Controls whether the modem displays the text of the
                    logon sequence.

     Command                              Function

       $V0          Logon sequence not displayed.

       $V1          Logon sequence displayed.

                 LOOPBACK TEST AND BUSY OUT CONFIGURATION

  Type:                  Configuration

  Format:                AT [cmds] %Hn [cmds]

  Description:           Controls the functions of serial port pins 18
                         and 21.

        Command                              Function

          %H0             Pins 18 and 21 have no function.

          %H1             Busy Out when pin 18 is high, perform local
                          analog loopback test on high DTR.

          %H2             Perform local analog loopback test when pin 18
                          is high, remote digital loopback test when pin
                          21 is high.

                          LOW DTR BUSY OUT TIMER

  Type:                   Register

  Format:                 AT [cmds] :T18=n [cmds]

  Default:                0

  Range:                  0 - 255

  Unit:                   1 second

  Description:            Sets the amount of time that the modem waits
                          after DTR has gone low to busy out the line.
                          The modem does not busy out the line when :T18
                          is set to 0.

                         MANUAL DIAL CONFIGURATION

  Type:                 Configuration

  Format:               AT [cmds] :Dn [cmds]

  Description:          Selects when the modem goes off-hook to accept a
                        manually dialed call.

        Command                              Function

          :D0            Modem does not respond when DTR goes high.

          :D1            Modem goes off hook in originate mode when DTR
                         goes high.

          :D2            Modem dials first stored number when DTR goes
                         high or when Talk/Data button is pressed

                         MNP10 1200BPS DISCONNECT

  Type:               Register

  Format:             AT [cmds] :T19=n [cmds]

  Description:        Selects whether the modem will disconnect an idle
                      1200bps MNP10 connection.

      Command                              Function

       :T19=0         Modem will not disconnect an idle connection.

       :T19=1         Modem will disconnect an idle connection after 2
                      minutes.

                              MNP10 FALLBACK

  Type:          Configuration

  Format:        AT [cmds] -Qn [cmds]

  Description:   Allows MNP10 to fall back to speeds slower than 4800bps

    Command                              Function

      -Q0        MNP10 at 2400bps and 1200bps disabled.

      -Q1        MNP10 at 2400bps enabled.

      -Q2        MNP10 at 2400bps and 1200bps enabled.

                           ORIGINATE/ANSWER MODE

  Type:             Configuration

  Format:           AT [cmds] $On [cmds]

  Description:      Selects whether the modem will function in originate
                    or answer mode.

      Command                             Function

        $O0         Originate/Answer button determines mode.

        $O1         Modem operates in originate mode.

        $O2         Modem operates in answer mode.

                         PARALLEL PORT PACKET SIZE

  Type:          Register

  Format:        AT [cmds] :T29=n [cmds]

  Default:       32

  Range:         0 - 63

  Unit:          1 byte

  Description:   Sets the size of packets sent over the parallel port.

                                  PARITY

  Type:          Configuration

  Format:        AT [cmds] -On [cmds]

  Description:   Selects the serial parity that the modem will use.

    Command                              Function

      -O0         Modem will use seven data bits, odd parity.

      -O1         Modem will use seven data bits, even parity.

      -O2         Modem will use seven data bits, MARK parity.

      -O3         Modem will use seven data bits, SPACE parity.

      -O4         Modem will use eight data bits, no parity.

      -O5         Modem will use eight data bits, odd parity.

      -O6         Modem will use eight data bits, even parity.

      -O7         Modem will use eight data bits, MARK parity.

                           POWER-UP DIAGNOSTICS

  Type:                   Immediate

  Format:                 AT [cmds] $D [cmds]

  Description:            Performs power-up diagnostic routines. If SW1
                          and SW2 are all on, performs a reset and
                          diagnostic routines.

                             PULSES PER DIGIT

  Type:              Configuration

  Format:            AT [cmds] %Wn [cmds]

  Description:       Sets the number of pulses per digit dialed while in
                     pulse mode.

      Command                              Function

        %W0          Digit value is number of pulses generated (0 digit
                     generates 10 pulses).

        %W1          Digit value plus one pulses generated (0 digit
                     generates 1 pulse).

        %W2          Ten minus digit value pulses generated (0 digit
                     generates 10 pulses).

                           REMOTE CONFIGURATION

  Type:             Configuration

  Format:           AT [cmds] *En [cmds]

  Description:      Selects whether a modem will accept requests for
                    remote configuration.

      Command                              Function

        *E0          Remote configuration disabled.

        *E1          Remote configuration enabled.

                      REMOTE CONFIGURATION CHARACTER

  Type:                  Configuration

  Format:                AT [cmds] *Sn [cmds]

  Default:               42

  Range:                 0 - 126

  Unit:                  1 ASCII character

  Description:           Defines the character that the *A command will
                         send four times within the guard time set by S12
                         to notify the remote modem that a remote
                         configuration session is requested.

                        REMOTE CONFIGURATION BANNER

  Type:                  Configuration

  Format:                AT [cmds] *I [cmds]

  Description:           Sets the banner that the modem displays when a
                         remote configuration session is begun. The user
                         will be prompted to enter the banner, which can
                         be no longer than 25 characters.

                       REMOTE CONFIGURATION RECOVERY

  Type:                Immediate

  Format:              AT [cmds] *Q [cmds]

  Description:         Recovers changes made during a remote
                       configuration session that were not saved.

                   REMOTE CONFIGURATION - REDUCE ACCESS

  Type:                  Immediate

  Format:                AT [cmds] *X [cmds]

  Description:           Removes a level of access during a remote
                         configuration session. If the user has full
                         access, it will be reduced to read-only; if at
                         read-only, the session will be ended.

                       REMOTE CONFIGURATION REQUEST

  Type:                  Immediate

  Format:                AT [cmds] *A [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 S12.

                         REMOTE CONFIGURATION SAVE

  Type:            Immediate

  Format:          AT [cmds] *U [cmds]

  Description:     Saves the changes that have been made to the remote
                   configuration.

                       REMOTE CONFIGURATION SECURITY

  Type:             Configuration

  Format:           AT [cmds] *Rn [cmds]

  Description:      Selects whether remote configuration sessions are
                    password protected.

      Command                             Function

        *R0         Remote configuration security disabled.

        *R1         Remote configuration security enabled.

            REMOTE CONFIGURATION SECURITY - FULL ACCESS REQUEST

  Type:                  Immediate

  Format:                AT [cmds] *M [cmds]

  Description:           Requests the remote modem to grant the user full
                         configuration access. If remote configuration
                         security is enabled, the user will be given
                         three chances to enter the password. If this
                         fails, full access will not be granted.

            REMOTE CONFIGURATION SECURITY - PASSWORD SELECTION

  Type:                  Configuration

  Format:                AT [cmds] *Pn

  Description:           Changes the passwords for remote configuration.
                         The user will be prompted to enter the old and
                         new passwords. Passwords must be exactly five
                         characters, case insensitive.

        Command                              Function

          *P0            Sets the read-only remote configuration
                         password.

          *P1            Sets the full access remote configuration
                         password.

                            RESULT CODES - MNP

  Type:          Configuration

  Format:        AT [cmds] -Mn [cmds]

  Description:   Selects whether the modem will give MNP result codes.

    Command                              Function

      -M0         MNP result codes disabled.

      -M1         MNP result codes enabled.

                                 RI SIGNAL

  Type:            Configuration

  Format:          AT [cmds] \Rn [cmds]

  Description:     Selects when the RI signal will be cleared from an
                   incoming call.

     Command                              Function

       \R0         RI signal not cleared until the call has disconnected.

       \R1         RI signal cleared when call is answered.

                              RING SIMULATION

  Type:                  Configuration

  Format:                AT [cmds] :Rn [cmds]

  Description:           Selects whether the modem simulates the ring
                         signal an incoming call if the DSTR signal is
                         low.

        Command                              Function

          :R0            Modem does not simulate a ring signal.

          :R1            Modem simulates ring on low DTR and if &D
                         command is not set to 0. After 30 seconds if DTR
                         does not go high, the modem "disconnects" the
                         simulated call. If &D is set to 0 or the DTR
                         signal is high, the modem attempts to connect
                         immediately.

                      SYNCHRONOUS RTS AND CTS SIGNALS

  Type:              Configuration

  Format:            AT [cmds] &Rn [cmds]

  Description:       Controls the behaviour of the RTS and CTS signals.

      Command                              Function

        &R0          CTS follows RTS in data mode; RTS is ignored in
                     command mode.

        &R1          CTS forced high, RTS is ignored.

        &R2          ITU-T V.13 used to simulate half-duplex modes on
                     full-duplex connections.

                          SECONDARY FLOW CONTROL

  Type:             Configuration

  Format:           AT [cmds] -Fn [cmds]

  Description:      Selects whether the secondary flow control characters
                    will be active.

      Command                             Function

        -F0         Secondary flow control disabled.

        -F1         Secondary flow control enabled.

                        SECURITY - CLEAR PASSWORDS

  Type:                  Configuration

  Format:                AT [cmds] $Jn [cmds]

  Description:           Clears sections of the password lists.

        Command                              Function

          $J0             Clears the call password table and resets the
                          logon sequences to their factory defaults.

          $J1             Clears all stored numbers, the call and
                          connection password tables, and resets the
                          logon sequences to their factory defaults.

               SECURITY - MAIN PASSWORD (ASYNCHRONOUS MODE)

  Type:                  Configuration

  Format:                AT [cmds] $P [cmds]

  Description:           Changes the main security password. The user
                         will be prompted for the old and new passwords.
                         Passwords must be exactly five characters, case
                         insensitive.

                SECURITY - MAIN PASSWORD (SYNCHRONOUS MODE)

  Type:                  Configuration

  Format:                AT [cmds] $Pxxxxx;yyyyy; [cmds]

  Description:           Changes the main security password. The user
                         will be prompted for the old and new passwords.
                         The xxxxx represents the old password, and the
                         yyyyy is the new password. Passwords must be
                         exactly five characters, case insensitive.

                       STORE COMPLETE ACTIVE PROFILE

  Type:                  Immediate

  Format:                AT [cmds] *Wn [cmds]

  Description:           Writes all the values for the active profile,
                         including S-registers not normally saved, into
                         the non-volatile RAM.

        Command                              Function

          *W0            Write the active profile to stored profile 0

          *W1            Write the active profile to stored profile 1

          *W2            Write the active profile to stored profile 2

          *W3            Write the active profile to stored profile 3

                          STORE TELEPHONE NUMBER

  Type:           Configuration

  Format:         AT [cmds] \Pn<#>

  Description:    Stores the telephone number indicated at memory
                  location n.

                           SWITCH CONFIGURATIONS

  Type:               Configuration

  Format:             AT [cmds] $Kn [cmds]

  Description:        Selects whether the modem will use the
                      configurations stored by SW1 and SW2.

       Command                             Function

         $K0          Switch configurations enabled.

         $K1          Switch configurations disabled.

                              TALK/DATA MODE

  Type:                 Configuration

  Format:               AT [cmds] $Tn [cmds]

  Description:          Controls the function of the Talk/Data button and
                        selects which mode the modem is in.

        Command                             Function

          $T0           Talk/Data button enabled.

          $T1           Talk/Data button disabled.

          $T2           Toggles talk/data mode.

                      V.21 AND V.23 ANSWER TONE TIMER

  Type:                  Register

  Format:                AT [cmds] :T3=n [cmds]

  Default:               33

  Range:                 0 - 33

  Unit:                  .1 second

  Description:           Sets the length of time the modem will send the
                         V.21 and V.23 answer tone or wait after the
                         answer tone is sent before attempting to
                         complete the connection.

                          V.21 NEGOTIATION TIMER

  Type:                  Register

  Format:                AT [cmds] :T2=n [cmds]

  Default:               0

  Range:                 0 - 255

  Unit:                  .1 second

  Description:           Sets the amount of time the modem will attempt
                         to make a V.21 connection before giving up and
                         attempting a V.23 half-duplex connection. If
                         this register is set to 0 the modem will not
                         attempt to make a V.23 connection and
                         disconnects instead.

                 V.22, V.22bis, AND V.32 NEGOTIATION TIMER

  Type:                  Register

  Format:                AT [cmds] :T0=n [cmds]

  Default:               40

  Range:                 0 - 255

  Unit:                  .1 second

  Description:           Sets the amount of time the modem will attempt
                         to make a V.22, V.22bis, or V.32 connection
                         before giving up and attempting a V.23 split
                         speed connection.

                              V.23 EQUALIZERS

  Type:                 Configuration

  Format:               AT [cmds] %On [cmds]

  Description:          Selects whether the modem will use equalizers
                        when operating in V.23 half-duplex mode.

        Command                              Function

          %O0            V.23 equalizers disabled.

          %O1            V.23 equalizers enabled.

                 V.23 HALF DUPLEX CARRIER TURNAROUND TIMER

  Type:                   Register

  Format:                 AT [cmds] :T4=n [cmds]

  Default:                20

  Range:                  0 - 255

  Unit:                   12.5 mS

  Description:            Sets the amount of time that the modem waits
                          for the remote modem to answer after lowering
                          the carrier signal before it raises the carrier
                          again and begins sending data.

                        V.23 HALF DUPLEX DCD TIMER

  Type:                   Register

  Format:                 AT [cmds] :T6=n [cmds]

  Default:                200

  Range:                  0 - 255

  Unit:                   1 mS

  Description:            Sets the amount of time the modem waits after
                          carrier is raised before it watches for
                          incoming data.

               V.23 HALF DUPLEX END-OF-BUFFER CARRIER TIMER

  Type:                   Register

  Format:                 AT [cmds] :T5=n [cmds]

  Default:                7

  Range:                  0 - 255

  Unit:                   12.5 mS

  Description:            Sets the amount of time that the modem waits
                          after emptying its transmit buffer before it
                          lowers the carrier signal.

                  V.23 HALF DUPLEX INACTIVE ANSWER TIMER

  Type:                  Register

  Format:                AT [cmds] :T7=n [cmds]

  Default:               60

  Range:                 0 - 255

  Unit:                  1 second

  Description:           Sets the amount time after a connection is made
                         that if no data is received the modem will
                         disconnect.

                    V.23 SPLIT SPEED NEGOTIATION TIMER

  Type:                  Register

  Format:                AT [cmds] :T1=n [cmds]

  Default:               30

  Range:                 0 - 255

  Unit:                  .1 second

  Description:           Sets the amount of time the modem will attempt
                         to make a V.23 split speed connection before
                         giving up and attempting a V.23 half-duplex or
                         V.21 connection. If this register is set to 0
                         the modem will not attempt to make a V.23
                         connection.

                      V.32 AND V.32bis TRAINING TIMER

  Type:                  Register

  Format:                AT [cmds] :T17=n [cmds]

  Default:               0

  Range:                 0,1,5 - 32

  Unit:                  Unidentified

  Description:           Sets the amount of time that the modem lets a
                         V.32 or V.32bis connection train before picking
                         a speed. A setting of 0 is equivalent to a
                         setting of 28. Longer training times reduce
                         noise sensitivity.

                        V.32 TRAINING ON CONNECTION

  Type:                  Register

  Format:                AT [cmds] :T23=n [cmds]

  Description:           Selects whether the modem performs a training
                         sequence at the beginning of a V.32 connection.

        Command                              Function

         :T23=0           Modem does not perform training sequence.

        :T23=32           Modem performs training sequence.

                                WORD LENGTH

  Type:          Configuration

  Format:        AT [cmds] -En [cmds]

  Description:   Sets the number of bits the modems will use per data
                 word.

    Command                              Function

      -E0         Use 10-bit words.

      -E1         Use 11-bit words.



                      Proprietary V.25bis Command Set

                           CLEAR STORED NUMBERS

  Type:                  Configuration

  Format:                CLAnn

  Description:           Clears stored number location nn. If no number
                         is given, all memory locations are cleared.

                                  CONNECT

  Type:          Result code

  Format:        ONLnnnn

  Description:   Reports that the modem has connected at nnnn bps.

                                CONNECTING

  Type:          Result code

  Format:        CNX

  Description:   Reports that the modem is attempting to connect.

                   DISPLAY CONFIGURATION AND STATISTICS

  Type:                Immediate

  Format:              RS3

  Description:         Displays the settings of all commands and
                       statistics about the current connection.

                                  HANG UP

  Type:          Immediate

  Format:        HUP

  Description:   Commands the modem to go on hook.

                          LOCAL SERIAL PORT SPEED

  Type:           Configuration

  Format:         CSPnn

  Description:    Sets the speed that the modem will communicate with the
                  DTE.

     Command                             Function

      CSP75       Sets the serial port to 75bps.

     CSP300       Sets the serial port to 300bps.

     CSP600       Sets the serial port to 600bps.

     CSP1200      Sets the serial port to 1200bps.

     CSP2400      Sets the serial port to 2400bps.

     CSP4800      Sets the serial port to 4800bps.

     CSP9600      Sets the serial port to 9600bps.

    CSP19200      Sets the serial port to 19.2Kbps.

    CSP38400      Sets the serial port to 38.4Kbps.

    CSP57600      Sets the serial port to 57.6Kbps.

    CSP115200     Sets the serial port to 115.2Kbps.

                                 OFF-LINE

  Type:          Result code

  Format:        OFL

  Description:   Reports that the connection has been terminated.

                                  ON-LINE

  Type:          Immediate

  Format:        RDS

  Description:   Instructs the modem to return to on-line state.

                                  REDIAL

  Type:          Immediate

  Format:        DLN

  Description:   Redials the last number dialed.

                                   RESET

  Type:          Immediate

  Format:        ITN

  Description:   Resets the modem to power-up defaults.

                           STORE ACTIVE PROFILE

  Type:          Immediate

  Format:        PRC

  Description:   Stores the active V.25bis profile in configuration 0.

                        V.25bis STANDARD SELECTION

  Type:                  Configuration

  Format:                AT@Bn

  Description:           Selects which standard the V.25bis commands will
                         follow.

        Command                              Function

         AT@B0            V.25bis result codes follow ITU-T Red Book.
                          Only V.25bis dial modifiers supported. The only
                          valid result codes are CFI, INC, INV, and VAL.

         AT@B1            V.25bis result codes follow ITU-T Blue Book.
                          Only V.25bis dial modifiers supported. The only
                          valid result codes are CFI, CNX, INC, INV, and
                          VAL.

         AT@B2            All V.25bis result codes supported. Only
                          V.25bis dial modifiers supported.

         AT@B4            V.25bis result codes follow ITU-T Red Book.
                          Only AT dial modifiers supported. The only
                          valid result codes are CFI, INC, INV, and VAL.

         AT@B5            V.25bis result codes follow ITU-T Blue Book.
                          Only AT dial modifiers supported. The only
                          valid result codes are CFI, CNX, INC, INV, and
                          VAL.

         AT@B6            All V.25bis result codes supported. Only AT
                          dial modifiers supported.

