
MULTI-TECH SYSTEMS, INC.

MT932EAI

Card Type                    Modem (synchronous/asynchronous)
Chip Set                     Unidentified
Maximum Data Rate            9600bps
Data Bus                     External
Data Modulation Protocol     Bell 103/212A

                             ITU-T V.21, V.22, V.22bis, V.23, V.25bis,
                             V.32
Error Correction/Compression MNP5, V.42, V.42bis

[Image]

                                CONNECTIONS

        Function           Label             Function              Label

  DC power                      CN1      Volume                      R1

  RS-232/422                    CN2      Power switch               SW1

  Line out                      CN3      Speed switch               SW2

  Line in                       CN4      Voice/data switch          SW3

                        USER CONFIGURABLE SETTINGS

                      Setting                         Label      Position

  CTS normal                                          SW4/A        Off

  CTS forced high                                     SW4/A        On

  Dial-up line                                        SW4/B        On

  Leased line                                         SW4/B        Off

  External clock (Synchronous mode)                   SW4/C        Off

  Multi-Tech response code (Asynchronous mode)

  Internal clock (Synchronous mode)                   SW4/C        On

  Hayes response code (Asynchronous mode)

  Asynchronous mode                                   SW4/D        Off

  Synchronous mode                                    SW4/D        On

  DTR forced high                                     SW5/A        On

  DTR normal                                          SW5/A        Off

  Verbose result code (Asynchronous mode)             SW5/B        On

  Analog loopback test enabled when SW4/B is on
  (Synchronous mode)

  Numeric result code (Asynchronous mode)             SW5/B        Off

  Analog loopback test disabled when SW4/B is off
  (Synchronous mode)

  Result code sending enabled (Asynchronous mode)     SW5/C        Off

  Remote loopback test enabled (Synchronous mode)

  Result code sending disabled (Asynchronous mode)    SW5/C        On

  Remote loopback test disabled (Synchronous mode)

  Local echo enabled (Asynchronous mode)              SW5/D        On

  Local Digital loopback test enabled (Synchronous
  mode)

  Local echo disabled (Asynchronous mode)             SW5/D        Off

  Local Digital loopback test disabled
  (Synchronous mode)

  Auto-answer enabled (Dial-up mode)                  SW5/E        On

  Answer mode (Leased line mode)

  Auto-answer disabled (Dial-up mode)                 SW5/E        Off

  Originate mode (Leased line mode)

  CD/DSR signals normal                               SW5/F        On

  CD/DSR signals forced high                          SW5/F        Off

  RTS forced high                                     SW5/G        Off

  RTS normal                                          SW5/G        On

  Smart mode                                          SW5/H        Off

  Dumb mode                                           SW5/H        On

                   DIAL-UP/LEASE LINE

          Setting                       JP4

          Dial-up            Pins 3 & 5, 4 & 6 closed

         Lease line          Pins 1 & 3, 2 & 4 closed

                      DSR

        Setting                   JP3

     DSR follows CD        Pins 1 & 2 closed

  DSR follows off-hook     Pins 2 & 3 closed

                         MI/MIC

          Setting                       JP5

      MI/MIC disabled        Pins 3 & 5, 4 & 6 closed

       MI/MIC enabled        Pins 1 & 3, 2 & 4 closed

                 RTS/CTS

       Setting               JP2

   CTS follows RTS    Pins 1 & 2 closed

   CTS forced high    Pins 2 & 3 closed

                 SDLC/BSC

       Setting               JP1

        SDLC          Pins 1 & 2 closed

         BSC          Pins 2 & 3 closed

                             DIAGNOSTIC LED(S)

   LED       Color       Status                   Condition

    SD        Red          On             Modem is transmitting data

    SD        Red          Off          Modem is not transmitting data

    RD        Red          On              Modem is receiving data

    RD        Red          Off           Modem is not receiving data

    CD        Red          On              Carrier signal detected

    CD        Red          Off           Carrier signal not detected

    CD        Red       Blinking             Modem is retraining

    96        Red          On             Modem connected at 9600bps

    96        Red          Off          Modem not connected at 9600bps

    24        Red          On             Modem connected at 24Kbps

    24        Red          Off          Modem not connected at 24Kbps

    12        Red          On             Modem connected at 1200bps

    12        Red          Off          Modem not connected at 1200bps

    OH        Red          On                 Modem is off-hook

    OH        Red          Off                 Modem is on-hook

    TR        Red          On                 DTR signal is high

    TR        Red          Off                DTR signal is low

            Note: If LED 96, 24, and 12 are on the modem is connected at
            300bps. If LED 96 and 24 are on the modem is connected at
            4800bps. If LED 96, 24, or 12 are blinking 3 times a second
            then V.42 is enabled at that speed. If LED 96, 24, or 12 are
            blinking 1 time a second then data compression is enabled at
            that speed.

                         Proprietary AT Command Set

                                 ATTENTION

  Type:          Immediate

  Format:        AT [cmds]

  Description:   Tells the modem that a command follows

                                  ANSWER

  Type:          Immediate

  Format:        AT [cmds] A

  Description:   Enables answer mode, the modem goes off-hook

                          REPEAT PREVIOUS COMMAND

  Type:           Immediate

  Format:         A/

  Description:    Repeats previous command

  Note:           Do not precede this command with AT, or follow it with
                  <CR>

                                  REDIAL

  Type:                Immediate

  Format:              A:

  Description:         Redials the last number dialed until it is no
                       longer busy or 10 attempts are made

  Note:                Do not precede this command with AT or follow it
                       with <CR>

                  AUTO-RELIABLE TIME BUFFER CONFIGURATION

  Type:              Configuration

  Format:            AT [cmds] $An [cmds]

  Description:       Controls the handling of incoming data during
                     auto-reliable time period

      Command                             Function

        $A0          Data is discarded

        $A1          Data is buffered

                            HANDSHAKE ATTEMPTS

  Type:            Configuration

  Format:          AT [cmds] #An [cmds]

  Description:     Configures the initial handshake phase.

     Command                              Function

       #A0         Attempts in order: 9600bps, 4800bps, 2400bps, 1200bps
                   and 300bps

       #A1         Attempts in order: 9600bps, 2400bps, 1200bps and
                   300bps

       #A2         Attempts V.32 connection in order: 9600bps and 4800bps

       #A3         Attempts V.22 connection in order: 2400bps, 1200bps
                   and 300bps

                               BLIND DIALING

  Type:          Configuration

  Format:        AT [cmds] Bn [cmds]

  Description:   Selects blind dial or wait-for-dial-tone

  Note:          Use with AT&Q0 and AT&Q2

    Command                              Function

       B0        Modem will blind dial (Default for MT932EA)

       B1        Modem will wait for dial tone before dialing

                                ANSWER TONE

  Type:          Configuration

  Format:        AT [cmds] Bn [cmds]

  Description:   Selects the answer tone used for data calls

  Note:          Use with AT&Q1 and AT&Q3

    Command                              Protocol

       B0        ITU-T answer tone (Default for MT932EA)

       B1        Bell answer tone

                                BUFFER SIZE

  Type:          Configuration

  Format:        AT [cmds] &Bn [cmds]

  Description:   Selects the modems transmit/receive buffer size

    Command                              Function

      &B0        Normal buffer size

      &B1        Small buffer size

                    MAXIMUM BLOCK SIZE FOR TRANSMISSION

  Type:          Configuration

  Format:        AT [cmds] &BSn [cmds]

  Description:   Sets the maximum transmittable block size

    Command                              Function

      &BS0       Maximum block size is 64 characters

      &BS1       Maximum block size is 256 characters

                             LOCK SERIAL PORT

  Type:          Configuration

  Format:        AT [cmds] $BAn [cmds]

  Description:   Sets operation of serial port speed

    Command                              Function

      $BA0       Serial speed locked at rate set by $SB

      $BA1       Serial speed follows connect speed ignoring $SB

                                 CD SIGNAL

  Type:          Configuration

  Format:        AT [cmds] &Cn [cmds]

  Description:   Configures the behavior of the carrier detect signal

    Command                              Function

      &C0        CD forced high

      &C1        CD normal

      &C2        CD forced high except during disconnect

                                   DIAL

  Type:                  Immediate

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

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

  Note:                  Any combination of modifiers can be used to
                         produce the desired dial functions in sequence.
                         The maximum characters that can be use is 60
                         including modifiers.

        Modifier                             Function

           P             Pulse dialing enabled

           R             Answer mode enabled originate mode disabled
                         following handshake initiation

           T             Tone dialing enabled

           W             Dialing resumed following dial tone detection

           ,             Dialing paused for amount of time specified in
                         S8 register

           !             Flash function initiated. Modem commanded to go
                         off-hook for half a second before returning
                         on-hook.

           @             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.

           ;             Modem returned to command state after dialing.
                         The semicolon can only be placed at the end of
                         the dial command.

                            STORE PHONE NUMBER

  Type:          Configuration

  Format:        AT [cmds] D<#>Nn

  Example:       ATD5551212N1

  Description:   Stores a phone number in the modems memory (n=0-9)

                                    DTR

  Type:                  Configuration

  Format:                AT [cmds] &Dn [cmds]

  Description:           Selects modem response to DTR

        Command                              Function

          &D0             Modem does not respond to DTR

          &D1             Modem goes to command mode after DTR goes is
                          off

          &D2             Modem goes to command mode and disconnects
                          (hangs up) after DTR goes off; Auto-Answer is
                          disabled.

          &D3             Modem is initialized after DTR goes off

                                DTR DIALING

  Type:          Configuration

  Format:        AT [cmds] $Dn [cmds]

  Description:   Selects the DTR dialing function

    Command                              Function

      $D0        DTR dialing disabled

      $D1        DTR dialing enabled

                                   ECHO

  Type:          Configuration

  Format:        AT [cmds] En [cmds]

  Description:   Enables modem to echo commands received from the DTE

    Command                              Function

       E0        Echo function disabled

       E1        Echo function enabled

                                 V.42 MODE

  Type:          Configuration

  Format:        AT [cmds] &En [cmds]

  Description:   Configures the operation of V.42 mode

    Command                              Function

      &E0        Error correction disabled normal mode enabled

      &E1        V.42 set to auto-reliable mode

      &E2        V.42 set to reliable mode

                             FLOW CONTROL TYPE

  Type:          Configuration

  Format:        AT [cmds] &En [cmds]

  Description:   Sets type of flow control used by modem

    Command                              Function

      &E3        Flow control disabled

      &E4        CTS/RTS flow control enabled

      &E5        XON/XOFF flow control enabled

                           XON/XOFF PASS-THROUGH

  Type:          Configuration

  Format:        AT [cmds] &En [cmds]

  Description:   Selects whether XON/XOFF signals are sent to remote
                 modem

    Command                              Function

      &E6        XON/XOFF signals trapped by local modem

      &E7        XON/XOFF passed through local modem

                          FLOW CONTROL - ENQ/ACK

  Type:          Configuration

  Format:        AT [cmds] &En [cmds]

  Description:   Selects ENQ/ACK pacing

    Command                              Function

      &E8        Enables ENQ/ACK pacing

      &E9        Disables ENQ/ACK pacing

                        FLOW CONTROL IN NORMAL MODE

  Type:            Configuration

  Format:          AT [cmds] &En [cmds]

  Description:     Selects XON/XOFF flow control for non-error-correcting
                   connections

     Command                              Function

       &E10        XON/XOFF disabled for non-error-correcting connections

       &E11        XON/XOFF enabled for non-error-correcting connections

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] &En [cmds]

  Description:   Selects flow control

    Command                              Function

      &E12       Flow control disabled

      &E13       Flow control enabled

                                COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] &En [cmds]

  Description:   Selects data compression

    Command                              Function

      &E14       Data compression disabled

      &E15       Data compression enabled

                            ASYNCHRONOUS FORMAT

  Type:          Configuration

  Format:        AT [cmds] $EBn [cmds]

  Description:   Selects 10- or 11-bits for asynchronous mode

    Command                              Function

      $EB0       Sets 10-bit asynchronous format

      $EB1       Sets 11-bit asynchronous format

                                 FALLBACK

  Type:          Configuration

  Format:        AT [cmds] #Fn [cmds]

  Description:   Controls fallback

    Command                              Function

      #F0        Fallback disabled

      #F1        Fallback from 9600bps to 4800bps as line quality
                 degrades

                             FACTORY DEFAULTS

  Type:          Immediate

  Format:        AT [cmds] &F [cmds]

  Description:   Loads factory defaults from ROM and DIP switches
                 settings

                     AUTO-RELIABLE FALLBACK CHARACTER

  Type:                  Configuration

  Format:                AT [cmds] $Fn [cmds]

  Description:           Controls whether the modem will react to <CR>
                         while in auto-reliable mode

  Note:                  In auto-reliable mode the modem is given 4
                         seconds to make a connection in reliable mode,
                         if <CR> is received during the 4 seconds the
                         modem will establish a connection in normal
                         mode.

        Command                              Function

          $F0            Establish a connection using error correction

          $F1            Switch to normal mode on receipt of <CR>

                                GUARD TONE

  Type:           Configuration

  Format:         AT [cmds] &Gn [cmds]

  Description:    Commands the modem to transmit a guard tone in
                  V.22/V.22bis

  Note:           Used primarily for international data transmission

    Command                              Function

      &G0         Guard tone disabled

      &G1         550Hz guard tone enabled

      &G2         1800Hz guard tone enabled

                               HELP SCREENS

  Type:          Immediate

  Format:        AT $Hn

  Description:   Displays modem help screens

    Command                              Function

      $H1        Displays help screen 1

      $H2        Displays help screen 2

      $H3        Displays help screen 3

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports modem ID number

       I1        Reports firmware revision number

                                   LISTS

  Type:          Immediate

  Format:        AT [cmds] Ln [cmds]

  Description:   Displays requested lists

    Command                              Function

       L          Displays all phone numbers stored in memory

       L5         Display current operating parameters

       L6         Displays current S-register settings

       L7         Displays additional parameters

                             COMPRESSION MODE

  Type:          Configuration

  Format:        AT [cmds] #Ln [cmds]

  Description:   Selects active compression protocols

    Command                              Function

      #L0        LAP-M/MNP negotiation enabled (default for MT932EAI)

      #L1        MNP negotiation only enabled

      #L2        LAP-M negotiation only enabled

      #L3        LAP-M enabled, no negotiation

                            COMMUNICATIONS MODE

  Type:          Configuration

  Format:        AT [cmds] &Mn [cmds]

  Description:   Selects communications mode

    Command                                Mode

      &M0        Asynchronous mode when on-line

      &M1        Synchronous mode when on-line

                               CONNECT SPEED

  Type:          Configuration

  Format:        AT $MBnnn

  Description:   Sets maximum connect speed

    Command                              Function

     $MB75       Sets V.23 mode (1200bps/75bps bi-directional)

     $MB300      Sets 300bps connect

    $MB1200      Sets 1200bps connect

    $MB2400      Sets 2400bps connect

    $MB4800      Sets 4800bps connect

    $MB9600      Sets 9600bps connect

                                  MI/MIC

  Type:          Configuration

  Format:        AT [cmds] $MIn [cmds]

  Description:   Controls MI/MIC option

    Command                              Function

      $MI0        MI/MIC option disabled

      $MI1        MI/MIC option enabled

                         DIAL STORED PHONE NUMBER

  Type:          Immediate

  Format:        AT [cmds] Nn

  Description:   Dials stored phone number n. (n=0-9)

                     DIAL STORED PHONE NUMBER - LINKED

  Type:                   Immediate

  Format:                 AT [cmds] NxNy

  Description:            Dials stored phone number x (x=0-9). If the
                          number is busy (x), the modem will proceed to
                          the next number selected (y) (y=0-9).

                               RESULT CODES

  Type:               Configuration

  Format:             AT &Qn

  Description:        Selects standard Hayes or Multi-Tech result code
                      sets with ATXn command

      Command                              Function

        &Q0           Multi-Tech result codes/Blind dialing (ATBn)
                      enabled, use ATX0-1

        &Q1           Standard Hayes result codes/Answer tone selection
                      (ATBn) enabled, use ATX2-4

        &Q2           Multi-Tech result codes enabled/Blind dialing
                      (ATBn) enabled, use ATX2-4

        &Q3           Multi-Tech result codes/Answer tone selection
                      (ATBn) enabled, use ATX2-4

                          RETRANSMIT FAIL ACTION

  Type:          Configuration

  Format:        AT [cmds] $Rn [cmds]

  Description:   Controls whether the modem gives up on a bad connection

    Command                              Function

      $R0        Hang up after 12 failed retransmissions

      $R1        Do not hang up after 12 failed retransmissions

                              STATUS-REGISTER

  Type:                  Configuration

  Format:                Read: AT [cmds] Sn? [cmds]

                         Write: AT [cmds] Sn=x [cmds]

  Description:           Writes to or reads from a specified register

  Note:                  (n=0-16, 18, 24, 25), (x=decimal format); when
                         reading the value of a register it is shown in a
                         3-digit decimal format.

                          LOCAL SERIAL PORT SPEED

  Type:          Configuration

  Format:        AT [cmds] $SBnnn [cmds]

  Description:   Sets serial port speed

    Command                              Function

     $SB300      Sets 300bps speed

    $SB1200      Sets 1200bps speed

    $SB2400      Sets 2400bps speed

    $SB4800      Sets 4800bps speed

    $SB9600      Sets 9600bps speed

    $SB19200     Sets 19.2Kbps speed

                               SPEED SWITCH

  Type:          Configuration

  Format:        AT [cmds] %Sn [cmds]

  Description:   Sets the speed switch setting

    Command                              Function

      %S0         Speed switch set to 9600/1200/2400bps

      %S1         Speed switch set to 9600/4800/2400bps

                                TEST MODES

  Type:          Immediate

  Format:        AT [cmds] &Tn

  Description:   Selects test options

    Command                              Function

      &T4        Grant remote digital loopback request

      &T5        Deny remote digital loopback request

                            TRELLIS MODULATION

  Type:          Configuration

  Format:        AT [cmds] #Tn [cmds]

  Description:   Controls Trellis Coded Modulation

    Command                              Function

      #T0        Disables TCM

      #T1        Enables TCM

                            LOOPBACK TEST MODE

  Type:          Configuration

  Format:        AT [cmds] Un [cmds]

  Description:   Performs test modes

    Command                              Function

       U0        Begin local analog loopback test in originate mode

       U1        Begin local analog loopback test in answer mode

       U2        Request remote digital loopback

       U3        Begin local digital loopback

                               DIALING MODE

  Type:          Configuration

  Format:        AT [cmds] $VDn [cmds]

  Description:   Selects voice/data mode dialing

    Command                              Function

      $VD0       Disables voice/data mode

      $VD1       Enables voice/data mode

                           STORE ACTIVE PROFILE

  Type:             Configuration

  Format:           AT [cmds] &Wn [cmds]

  Description:      Writes the parameters for the active profile into the
                    non-volatile RAM

      Command                             Function

        &W0         Parameters stored in NVRAM

        &W1         Parameters not stored in NVRAM

                     SELECT CALL PROGRESS RESULT CODES

  Type:                  Configuration

  Format:                AT [cmds] Xn [cmds]

  Description:           Enables selection of tone detection and
                         associated result code format options

        Command                              Function

           X0            Busy and dial tone detection disabled; result
                         codes 0 - 4 enabled.

           X1            Busy and dial tone detection disabled; result
                         codes 0 - 5 & 10 enabled.

           X2            Busy tone detection disabled, dial tone
                         detection enabled; result codes 0 - 6 & 10
                         enabled.

           X3            Busy tone detection enabled, dial tone detection
                         disabled; result codes 0 - 5, 7 & 10 enabled.

           X4            Busy and dial tone detection enabled; result
                         codes 0 - 7 & 10 enabled.

                    CLOCK SOURCE - SYNCHRONOUS TRANSMIT

  Type:          Configuration

  Format:        AT [cmds] &Xn [cmds]

  Description:   Selects DTE transmit clock source

    Command                              Function

      &X0        Modem generates clock

      &X1        DTE generates clock

      &X2        Modem generates clock from the receive carrier signal

                                BREAK TIME

  Type:          Configuration

  Format:        AT [cmds] S17=n [cmds]

  Default:       25

  Range:         0-255

  Unit:          .01 second

  Description:   Sets break time to DTE

                            DSR/CTS/CD TIMEOUT

  Type:           Register

  Format:         AT [cmds] S24=n [cmds]

  Default:        20

  Range:          0-255

  Unit:           .05 second

  Description:    Sets the time to drop the DSR, CTS, and CD signals to
                  hang-up

                                DTR TIMEOUT

  Type:          Register

  Format:        AT [cmds] S25=n [cmds]

  Default:       0

  Range:         0-255

  Unit:          .1 second

  Description:   Sets the time to drop the DTR signal to hang-up

  Note:          Setting S25 to 0 sets the DTR time-out to .05 second

                             INACTIVITY TIMER

  Type:                  Register

  Format                 AT [cmds] S30=n [cmds]

  Default:               0

  Range:                 0-255

  Unit:                  1 minute

  Description:           Maximum duration of DTE and DCE inactivity
                         allowed prior to initiating hang-up process.

  Note:                  S30=0 will disable the timer

                      Proprietary V.25bis Command Set

                           CLEAR MEMORY LOCATION

  Type:          Immediate

  Format:        CLAn

  Description:   Clears the phone number in memory location n.

                          LOCAL SERIAL PORT SPEED

  Type:          Configuration

  Format:        CSPn

  Description:   Sets serial port speed

    Command                              Function

     CSP300      Sets 300bps speed

    CSP1200      Sets 1200bps speed

    CSP2400      Sets 2400bps speed

    CSP4800      Sets 4800bps speed

    CSP9600      Sets 9600bps speed

    CSP19200     Sets 19.2Kbps speed

    CSP38400     Sets 38.4Kbps speed

                          REQUEST LISTED NUMBERS

  Type:          Immediate

  Format:        RLN

  Description:   Requests the modem to return the list of stored numbers

                          CONNECT INCOMING CALLS

  Type:                   Immediate

  Format:                 CIC

  Description:            Instructs the modem to answer an incoming call;
                          if no call is currently incoming, a result of
                          INV will be returned.

                          DISREGARD INCOMING CALL

  Type:                  Immediate

  Format:                DIC

  Description:           Instructs the modem to ignore the incoming call,
                         if the modem is set to automatically answer. If
                         no call is currently incoming, a result of INV
                         will be returned.

                           CALL REQUESTED NUMBER

  Type:                   Immediate

  Format:                 CRN<#>

  Description:            Dials the number given; it will ignore spaces
                          and hyphens in the string; if the string is
                          more than twenty characters long, a result of
                          INV will be returned.

                         CALL REQUEST WITH ADDRESS

  Type:                Immediate

  Format:              CRSn

  Description:         Dials the number stored in memory n after checking
                       the forbidden and delayed lists

                              PROGRAM NUMBER

  Type:                  Configuration

  Format:                PRNn<#>

  Description:           Stores a phone number in memory address n; if
                         the number is more than twenty characters long,
                         a result of INV will be returned.

                      REQUEST LIST OF DELAYED NUMBERS

  Type:                   Immediate

  Format:                 RLD

  Description:            Requests the list of delayed numbers from the
                          modem; this is a list of numbers that the modem
                          attempted to call and failed, and is not
                          allowed to call again until a set amount of
                          time has elapsed; this is usually to prevent
                          repeated dialing of a number (which could
                          indicate an attempted security breach.) If this
                          feature is not enabled, the modem will return
                          INV.

                     REQUEST LIST OF FORBIDDEN NUMBERS

  Type:                  Immediate

  Format:                RLF

  Description:           Requests the list of forbidden numbers; the
                         modem is unable to dial numbers on this list
                         until it has been reset(power off/on); if this
                         feature is not enabled, the modem will return
                         INV.

                      V.25BIS COMMAND SET RESULT CODES

                          CALL FAILURE INDICATOR

  Type:                   Response

  Format:                 CFIxx

  Description:            Indicates that the attempt to connect failed

     Response           Name                     Description

      CFIET         Engaged Tone    A busy signal was detected

      CFIAB             Abort       The call was aborted because no
                                    dialtone was detected

      CFINT            No Tone      The remote party did not issue a
                                    response tone

      CFIFC         Forbidden Call  The number given is on the forbidden
                                    list

      CFINS          Not Stored     The phone number given wasnt in
                                    memory

      CFIUA          User Abort     The user aborted the call using a
                                    character from the host computer

      CFIND           Dial Tone     A dial tone was not detected

      CFIFF         Forbidden list  The forbidden list is full

                               INCOMING CALL

  Type:          Response

  Format:        INC

  Description:   An incoming call has been detected

                                   VALID

  Type:          Response

  Format:        VAL

  Description:   The command issued is valid and is being executed

                                  INVALID

  Type:          Response

  Format:        INV

  Description:   The modem was issued an improper command

                               DELAYED CALL

  Type:                   Response

  Format:                 DLCn

  Description:            The telephone number given is on the delayed
                          call list; the call cannot be completed until n
                          minutes elapse.

                                CONNECTION

  Type:           Response

  Format:         CONn

  Description:    A connection has been successfully established at the
                  speed n

                          LIST OF STORED NUMBERS

  Type:                   Response

  Format:                 LSNn<#>

  Description:            This code is given in response to a RLN
                          command; it indicates that the number is in
                          V.25bis memory.

                      LIST OF STORED DELAYED NUMBERS

  Type:                   Response

  Format:                 LSDn<#>

  Description:            This code is given in response to a RLD
                          command; it indicates that the number cannot be
                          redialed for n minutes.

                     LIST OF STORED FORBIDDEN NUMBERS

  Type:                   Response

  Format:                 LSFn<#>

  Description:            This code is given in response to a RLF
                          command; it indicates that the number is on the
                          forbidden list and cannot be dialed.

