
U.S. ROBOTICS, INC.

COURIER V.34 FAX (INTERNAL)

Card Type                    Fax, Modem (asynchronous, synchronous)
Chip Set                     U.S. Robotics
Maximum Data Rate            28.8Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     8-bit ISA
Fax Class                    Class I & II
Data Modulation Protocol     Bell 103/212A

                             ITU-T V.21, V.22, V.22bis, V.23, V.25bis,
                             V.32, V.32bis, V.34

                             Rockwell V.FC

                             U.S. Robotics HST, V.32terbo
Fax Modulation Protocol      ITU-T V.17, V.21, V.27ter, V.29
Error Correction/Compression HST, MNP5, V.42, V.42bis

[Image]

                                CONNECTIONS

         Function            Label            Function             Label

  Line out                        CN1       Line in                 CN2

                        USER CONFIGURABLE SETTINGS

                     Setting                         Label      Position

  DTR normal                                         SW1/A        Off

  DTR forced high                                    SW1/A         On

  Verbose (word) format enabled                      SW1/B        Off

  Numeric format enabled                             SW1/B         On

  Result code display enabled                        SW1/C         On

  Result code display disabled                       SW1/C        Off

  Local echo enabled                                 SW1/D        Off

  Local echo disabled                                SW1/D         On

  Auto-answer disabled                               SW1/E         On

  Auto-answer enabled, off-hook on first ring        SW1/E        Off

  CD normal                                          SW1/F        Off

  CD forced high                                     SW1/F         On

  Result code display enabled in both originate      SW1/G        Off
  and answer mode

  Result code display enabled in originate mode      SW1/G         On
  only

  Smart mode                                         SW1/H         On

  Dumb mode                                          SW1/H        Off

  Escape code response: modem goes on-hook,          SW1/I        Off
  off-line command mode, returns NO CARRIER

  Escape code response: modem stays on-line,         SW1/I         On
  on-line command mode, returns OK

  Reset and load from profiles in NVRAM              SW1/J        Off

  Reset and load from factory settings in ROM        SW1/J         On

                           SERIAL PORT ADDRESS

    Setting        JP1/A          JP1/B          JP1/C          JP1/D

  COM1 (3F8h)      Closed          Open          Open           Open

  COM2 (2F8h)       Open          Closed         Open           Open

  COM3 (3E8h)       Open           Open         Closed          Open

  COM4 (2E8h)       Open           Open          Open          Closed

                       INTERRUPT SELECTION

  Setting     JP2/A      JP2/B      JP2/C      JP2/D     JP2/E

     2       Closed      Open       Open       Open       Open

     3        Open      Closed      Open       Open       Open

     4        Open       Open      Closed      Open       Open

     5        Open       Open       Open      Closed      Open

     7        Open       Open       Open       Open      Closed

                         Proprietary AT Command Set

                                   ABORT

  Type:          Immediate

  Format:        Any key

  Description:   Aborts answering/originating a call; modem hangs up.

                              ACCOUNT ACCESS

  Type:                  Immediate

  Format:                AT%S=n <cr>

  Description:           Acquire access to security accounts without
                         disabling security. (n= local access password)

                                  ANSWER

  Type:          Immediate

  Format:        AT [cmds] A

  Description:   Enables answer mode; the modem goes off-hook.

                              ANSWER SEQUENCE

  Type:            Configuration

  Format:          AT [cmds] Bn [cmds]

  Description:     Selects the answer sequence the modem will use

     Command                              Function

        B0         ITU-T answer sequence enabled

        B1         Bell answer sequence enabled, required for all HST
                   Cellular calls.

                                 ATTENTION

  Type:              Immediate

  Format:            AT [cmds]

  Description:       Tells the modem that a command follows or use alone
                     to test OK result code

                          BIT-MAPPED REGISTER S54

  Format:             AT [cmds] S54=n [cmds]

  Default:            0

  Range:              0-255

  Unit:               Bit-mapped

  Description:        Controls call indicate during V.34 operation and
                      V.8 during V.34 operation.

   Bit      Value                          Function

  5 - 0     000000    Not used

    6             0   Call indicate during V.34 operation enabled

                 1    Call indicate during V.34 operation disabled

    7             0   V.8 during V.34 operation enabled

                 1    V.8 during V.34 operation disabled

                          BIT-MAPPED REGISTER S13

  Format                AT [cmds] S13=n [cmds]

  Default:              0

  Range:                0-255

  Unit:                 Bit-mapped

  Description:          Controls DTR reset, reverse operations, reset
                        dialing, HST, MNP3, and custom applications.

    Bit       Value                         Function

     0              0   DTR normal

                   1    Reset on low DTR

     1              0   Normal auto answer operation

                   1    When ring is received, enter originate and listen
                        for answer tone

     2              0   Immediate result code display

                   1    Pause 250msec before displaying result codes

     3              0   DTR dialing disabled

                   1    DTR dialing enabled

     4              0   Reset dialing disabled

                   1    Reset dialing enabled

     5              0   Enable HST

                   1    Disable HST (used for testing V.32terbo in Dual
                        Standard modems)

     6              0   MNP 3 enabled

                   1    MNP 3 disabled

     7              0   Custom applications

                   1    Custom applications

                          BIT-MAPPED REGISTER S14

  Format:             AT [cmds] S14=n [cmds]

  Default:            0

  Range:              0-255

  Description:        Controls disconnect, and retrain

     Bit       Value                        Function

      0             0   Normal operation

                   1    Disconnect on escape code

    6 - 1      000000    Not used

      7              0   Enable retrain

                    1    Disable retrain

                          BIT-MAPPED REGISTER S15

  Format:               AT [cmds] S15=n [cmds]

  Default:              0

  Range:                0-255

  Unit:                 Bit-mapped

  Description:          Controls HST high frequency equalization, online
                        fallback, back channel, non-error-correcting mode
                        buffer, MNP4, BS/DEL switch, MNP compliance, and
                        custom applications.

   Bit       Value                          Function

    0               0   HST high frequency equalization enabled

                   1    HST high frequency equalization disabled

    1               0   Online fallback enabled

                   1    Online fallback disabled

    2               0   450bps back channel enabled

                   1    450bps back channel disabled

    3               0   Non-error-correcting mode transmit buffer set to
                        1.5KB
                   1
                        Non-error-correcting mode transmit buffer set to
                        128 bytes

    4               0   MNP 4 enabled

                   1    MNP 4 disabled

    5               0   Use backspace key for delete disabled

                   1    Use backspace key for delete enabled

    6               0   MNP normal

                   1    MNP adjusted for non-compliant modems

    7               0   Custom applications

                   1    Custom applications

                          BIT-MAPPED REGISTER S27

  Format:                AT [cmds] S27=n [cmds]

  Default:               0

  Range:                 0-191

  Unit:                  Bit-mapped

  Description:           Controls V.21, V.32 encoding and modulation,
                         V.42 answer tone and handshake, and 9600 result
                         codes.

    Bit       Value                          Function

     0                0  V.21 disabled

                     1   V.21 enabled

     1                0  V.32 non-trellis coding disabled

                     1   V.32 non-trellis coding enabled

     2                0  V.32 modulation enabled

                     1   V.32 modulation disabled

     3                0  2100Hz answer tone enabled

                     1   2100Hz answer tone disabled; allows V.42 modems
                         to connect quicker.

   5, 4              00  V.42 detect, LAPM and MNP enabled

                     01  V.42 detect and LAPM enabled

                     10  MNP enabled

                    11   LAPM enabled

     6               0   Not used

     7                0  Actual result codes displayed

                     1   Force 9600 result codes

                          BIT-MAPPED REGISTER S34

  Format:               AT [cmds] S34=n [cmds]

  Default:              0

  Range:                0-255

  Unit:                 Bit-mapped

  Description:          Controls V.32bis/V.32terbo modulations, LED
                        selection, MI/MIC, and remote access busy
                        message.

   Bit       Value                          Function

    0               0   V.32bis enabled

                   1    V.32bis disabled

    1               0   Enhanced V.32bis enabled

                   1    Enhanced V.32bis disabled

    2               0   V.32terbo fast retrain enabled

                   1    V.32terbo fast retrain disabled

    3               0   V.23 modulation disabled

                   1    V.23 modulation enabled

    4               0   Change MR LED to DSR disabled

                   1    Change MR LED to DSR enabled

    5               0   MI/MIC disabled

                   1    MI/MIC enabled

    6               0   Remote access busy message enabled

                   1    Remote access busy message disabled

    7               0   V.32terbo enabled

                   1    V.32terbo disabled

                          BIT-MAPPED REGISTER S56

  Format:            AT [cmds] S56=n [cmds]

  Default:           0

  Range:             0-192

  Description:       Controls enable/disable V.34 and V.FC.

     Bit       Value                         Function

    5 - 0      000000    Not used

      6              0   V.34 enabled

                    1    V.34 disabled

      7              0   V.FC enabled

                    1    V.FC disabled

                               BREAK LENGTH

  Type:            Register

  Format:          AT [cmds] S21=n [cmds]

  Default:         10

  Range:           0-255

  Unit:            .01 second

  Description:     Sets the length of error control mode breaks sent from
                   DCE to DTE.

                                BREAK TYPE

  Type:           Configuration

  Format:         AT [cmds] &Yn [cmds]

  Description:    Configures action of break signal

     Command                             Function

       &Y0        Empty buffer only

       &Y1        Empties buffer and break is sent immediately

       &Y2        Do not empty buffer and break is sent immediately

       &Y3        Do not empty buffer and send break along with
                  transmitted data

                            CARRIER DETECT (CD)

  Type:                  Configuration

  Format:                AT [cmds] &Cn [cmds]

  Description:           Sets the CD signal

            Note: Modem controls CD signal by the SW1/F setting, AT&Cn
            not saved in NVRAM. (External models only)

        Command                              Function

          &C0            CD signal forced high

          &C1            CD signal normal

                    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

                                COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] &Kn [cmds]

  Description:   Selects data compression

    Command                              Function

      &K0        Data compression disabled

      &K1        Auto enabled/disable data compression

      &K2        Data compression enabled

      &K3        V.42bis data compression only enabled

                     COMPRESSION AND ERROR CORRECTION

  Type:                Register

  Format               AT [cmds] S51=n [cmds]

  Default:             0

  Range:               0-7

  Unit:                Bit-mapped

  Description:         Selects compression and error correction for
                       specific modulations, and controls handset
                       exclusion delay

   Bit       Value                          Function

    0              0   MNP/V.42 disabled during V.22 operation

                  1    MNP/V.42 disabled during V.22 operation

    1              0   MNP/V.42 disabled during V.22bis operation

                  1    MNP/V.42 disabled during V.22bis operation

    2              0   MNP/V.42 disabled during V.32/V.32bis/V.32terbo
                       operation
                  1
                       MNP/V.42 disabled during V.32/V.32bis/V.32terbo
                       operation

    7              0   Handset exclusion delay disabled

                  1    Handset exclusion delay enabled

                             CONNECTION SPEED

  Type:          Configuration

  Format:        AT [cmds] &Nn [cmds]

  Description:   Sets connection speed, variable or fixed.

    Command                              Function

      &N0        Variable

      &N1        300bps

      &N2        1200bps

      &N3        2400bps

      &N4        4800bps

      &N5        7200bps

      &N6        9600bps

      &N7        12Kbps

      &N8        14.4Kbps

      &N9        16.8Kbps (HST, V.32terbo, V.34 and V.FC only)

      &N10       19.2Kbps (V.32terbo, V.34 and V.FC only)

      &N11       21.6Kbps (V.32terbo, V.34 and V.FC only)

      &N12       24Kbps (V.34 and V.FC only)

      &N13       26.4Kbps (V.34 and V.FC only)

      &N14       28.8Kbps (V.34 and V.FC only)

                           DATA SET READY (DSR)

  Type:            Configuration

  Format:          AT [cmds] &Sn [cmds]

  Description:     Selects DSR options

     Command                              Function

       &S0         DSR forced high

       &S1         DSR high only while modem is handshaking or connected

       &S2         DSR toggled on loss of CD signal with CTS following CD
                   signal

       &S3         DSR toggled on loss of CD signal without CTS following
                   CD signal

       &S4         DSR and CD signals are sent to DTE at the same time

                   DATA SET READY (DSR) - PULSED SIGNAL

  Type:                Register

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

  Default:             150

  Range:               0-255

  Unit:                .02 second

  Description:         Sets the length of time between DSR on/off when
                       the modem is set to &S2 or &S3.

                         DATA TERMINAL READY (DTR)

  Type:          Configuration

  Format:        AT [cmds] &Dn [cmds]

  Description:   Selects modem response to DTR

    Command                              Function

      &D0        Modem does not respond to DTR, DTR signal forced high

      &D1        Modem goes to command mode after DTR toggles

      &D2        Modem uses DTR as normal

                                DETECT TONE

  Type:                  Immediate

  Format:                AT [cmds] %T [cmds]

  Description:           Enables the modem to detect tone frequencies of
                         dialing modems. Used primarily for network
                         applications. To enable, ATH1<cr> then AT%T. To
                         disabled, press any key.

                                   DIAL

  Type:                 Immediate

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

  Example:              ATDT 443-3388,,,1111;

  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.

       Modifier                             Function

           P            Pulse dialing enabled

           T            Tone dialing enabled

           ,            Dialing paused for 2 seconds to a maximum amount
                        of time specified in S8 register

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

           "            Dials letters that follow, ATDT"GOMICRO

           !            Flash function initiated

           W            Dialing resumed following dial tone detection

           @            Wait for quiet answer, then proceeds to execute
                        the rest of the dial string.

           /            125 msec delay before proceeding with dial string

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

                            DIAL - LAST NUMBER

  Type:               Immediate

  Format:             AT [cmds] DL [cmds]

  Description:        Re-dial last number dialed

            Note: Use ATDL instead of A/ if you need to use commands
            other than the dial command.

                           DIAL - STORED NUMBER

  Type:          Immediate

  Format:        AT [cmds] DSn [cmds]

  Description:   Dial stored number from memory location n. (n=0-9)

                          DISCONNECT BUFFER DELAY

  Type:                  Register

  Format                 AT [cmds] S38=n [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. A
                         value of 0 allows the modem to hang-up
                         immediately.

                           DTR CHANGE THRESHOLD

  Type:           Register

  Format          AT [cmds] S25=n [cmds]

  Default:        5

  Range:          0-255

  Unit:           .01 second

  Description:    Sets maximum time a change in the DTR signal will be
                  ignored

                                   ECHO

  Type:            Configuration

  Format:          AT [cmds] En [cmds]

  Description:     Controls echo function; display keyboard commands when
                   enabled.

     Command                             Function

       E0          Echo function disabled

       E1          Echo function enabled

                              ECHO - ON-LINE

  Type:           Configuration

  Format:         AT [cmds] Fn [cmds]

  Description:    Selects whether commands sent while in data mode are
                  echoed

    Command                              Function

       F0         Local echo enabled

       F1         Local echo disabled

                          EDIT - SECURITY SYSTEMS

  Type:            Immediate

  Format:          AT [cmds] %E=n [cmds]

  Description:     Clears chosen field or password

     Command                              Function

       %E=1        Clear local access password

       %E=2        Clear auto-pass password

       %E=3        Clear passwords in accounts 0-9

       %E=4        Clear phone numbers in accounts 0-9

       %E=5        Disable account, dial-back, and new number fields in
                   accounts 0-9

                        ERROR CORRECTION MODE (ARQ)

  Type:              Configuration

  Format:            AT [cmds] &Mn [cmds]

  Description:       Selects active error correction protocols

      Command                             Function

        &M0          Normal mode only

        &M1          On-line synchronous mode without V.25bis

        &M4          Auto-detect mode

        &M5          ARQ mode only

        &M6          V.25bis on-line synchronous mode with a protocol
                     link similar to BISYNC

        &M7          V.25bis on-line synchronous mode with HDLC protocol
                     link

                              ESCAPE SEQUENCE

  Type:                   Immediate

  Format:                 +++AT [cmds] <CR>

  Description:            Initiates the escape sequence and returns the
                          modem to the on-line command state if it
                          receives three escape characters set in S2
                          within the time allotted by S12.

  Note:                   Do not precede this command with AT.

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] &An [cmds]

  Description:   Selects extended result codes

    Command                              Function

      &A0        Extended result codes disabled

      &A1        ARQ result codes enabled

      &A2        V.32, HST, V.34 or V.FC result code enabled

      &A3        Error control and compression result codes enabled

                          FACTORY DEFAULT PROFILE

  Type:             Configuration

  Format:           AT [cmds] &Fn [cmds]

  Description:      Sets values in active profile to values found in the
                    default profile

      Command                             Function

        &F0         No flow control template

        &F1         Hardware flow control template

        &F2         Software flow control template

        &F3         HST Cellular template

                       FLOW CONTROL CHARACTER - XOFF

  Type:          Register

  Format:        AT [cmds] S23=n [cmds]

  Default:       19

  Range:         0-127

  Unit:          ASCII

  Description:   Sets the character used to represent XOFF.

                       FLOW CONTROL CHARACTER - XON

  Type:          Register

  Format:        AT [cmds] S22=n [cmds]

  Default:       17

  Range:         0-127

  Unit:          ASCII

  Description:   Sets the character used to represent XON.

                         FLOW CONTROL PASSTHROUGH

  Type:          Configuration

  Format:        AT [cmds] &In [cmds]

  Description:   Allows modem to act on, then transmit XON/XOFF
                 characters.

    Command                              Function

      &I0        Software flow control disabled

      &I1        XON/XOFF passthrough enabled

      &I2        XON/XOFF passthrough disabled

      &I3        ENQ/ACK enabled in host mode

      &I4        ENQ/ACK enabled in terminal mode

      &I5        XON/XOFF passthrough disabled in error correction mode

                             FLOW CONTROL TYPE

  Type:          Configuration

  Format:        AT [cmds] &Hn [cmds]

  Description:   Sets type of flow control used by modem

    Command                              Function

      &H0        Flow control disabled

      &H1        CTS/RTS flow control enabled

      &H2        XON/XOFF flow control enabled

      &H3        CTS/RTS and XON/XOFF flow control enabled

                             FLOW CONTROL TYPE

  Type:           Configuration

  Format:         AT [cmds] &Rn [cmds]

  Description:    Controls receive data hardware flow control and RTS
                  signals

    Command                              Function

      &R0         Delay CTS response after RTS signal (RTS/CTS delay)

      &R1         Modem ignores RTS

      &R2         Received data to DTE when RTS is on

                                GUARD TONE

  Type:            Configuration

  Format:          AT [cmds] &Gn [cmds]

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

            Note: Used primarily for international data transmission

     Command                              Function

       &G0         Guard tone disabled

       &G1         550Hz guard tone enabled

       &G2         1800Hz guard tone enabled

                               HOOK CONTROL

  Type:          Immediate

  Format:        AT [cmds] Hn [cmds]

  Description:   Selects whether the modem is on-hook or off-hook

    Command                              Function

       H0        Modem commanded to go on-hook (hang-up)

       H1        Modem commanded to go off-hook (pick-up)

                             INACTIVITY TIMER

  Type:                  Register

  Format:                AT [cmds] S19=n [cmds]

  Default:               0

  Range:                 0-255

  Unit:                  1 minute

  Description:           Sets the length of time that the modem does not
                         receive information before it disconnects. S19=0
                         will disable.

                           LEASED-LINE RECONNECT

  Type:                  Register

  Format:                AT [cmds] S44=n [cmds]

  Default:               15

  Range:                 0-255

  Unit:                  1 second

  Description:           Sets the time when the modem will reconnect in
                         leased-line mode when it detects a loss of
                         carrier.

                                 LINE TYPE

  Type:          Configuration

  Format:        AT [cmds] &Ln [cmds]

  Description:   Selects line type

    Command                             Line Type

      &L0        Switched line (PSTN/Dial-up)

      &L1        Leased-line

      &L2        Cellular operation

                             LOCK SERIAL PORT

  Type:          Configuration

  Format:        AT [cmds] &Bn [cmds]

  Description:   Sets operation of serial port speed

    Command                              Function

      &B0        Serial speed follows connect speed

      &B1        Serial speed locked

      &B2        Serial speed locked in ARQ mode only

                                  MAPPING

  Type:              Register

  Format:            AT [cmds] S55=n [cmds]

  Default:           0

  Range:             0-15

  Description:       Controls all Map options

     Bit      Value                         Function

      0            0   8S-2D map enabled

                  1    8S-2D map disabled

      1             0   16S-4D map enabled

                   1    16S-4D map disabled

      2             0   32S-2D map enabled

                   1    32S-2D map disabled

      3             0   64S-4D map enabled

                   1    64S-4D map disabled

                                  ON-LINE

  Type:           Immediate

  Format:         AT [cmds] On [cmds]

  Description:    Controls on-line command (data transmission) mode
                  options.

            Note: The O command must be placed at the end of the command
            string.

     Command                             Function

       O0         On-line command mode with no retraining enabled

       O1         On-line command mode with retraining enabled

                           PACKET SIZE - REDUCE

  Type:          Register

  Format:        AT [cmds] S33=n [cmds]

  Description:   Reduces the size of the packets being sent

    Command                              Function

     S33=0        Reduce packet size disabled

     S33=1        Reduce packet size enabled

                           PASSWORD - ASSIGNMENT

  Type:          Configuration

  Format:        AT [cmds] %L=n [cmds]

  Description:   Assign an account password as the local access password.

                           PASSWORD - AUTO-PASS

  Type:          Configuration

  Format:        AT [cmds] %V=PWn [cmds]

  Description:   Make the password in account n as your auto-pass
                 password

                            PASSWORD - SECURITY

  Type:                  Configuration

  Format:                AT [cmds] %Pn=x [cmds]

  Description:           Sets, views or disables password security

        Command                              Function

          %Pn=           Disable password security (%Pn=0 or 1)

         %Pn=x           Viewing privileges only (n=0), Viewing and
                         configuration privileges (n=1) for specified
                         password string (x).

          %Pn?           Display password n

                            PULSE DIALING RATIO

  Type:          Configuration

  Format:        AT [cmds] &Pn [cmds]

  Description:   Selects pulse dial make/break ratio

    Command                              Function

      &P0        39/61ms at 10pps (North America)

      &P1        33/67ms at 10pps (Europe)

                     REMOTE ACCESS - ESCAPE CHARACTER

  Type:              Register

  Format:            AT [cmds] S42=n [cmds]

  Default:           126

  Range:             0-255

  Unit:              ASCII

  Description:       Controls the remote access escape character, default
                     character (~) Tilde.

                      REMOTE ACCESS - LOG-IN ATTEMPTS

  Type:                   Register

  Format:                 AT [cmds] S41=n [cmds]

  Default:                0

  Range:                  0-255

  Unit:                   1 attempt

  Description:            Sets the number of remote access log-in
                          attempts. S41=0 disables and doesnt allow
                          remote access.

                         REMOTE ACCESS - SEQUENCE

  Type:           Register

  Format:         AT [cmds] S43=n [cmds]

  Default:        200

  Range:          0-255

  Unit:           .02 second

  Description:    Sets the guard time for the remote access sequence,
                  (~~~~).

                       REMOTE CONFIGURATION CONTROL

  Type:                  Configuration

  Format:                AT [cmds] %Cn [cmds]

  Description:           Sets how the modem will react to remote
                         configuration changes

        Command                              Function

           C0            Remote configuration changes are deferred, this
                         ensures that connections are made.

           C1            Remote configuration changes are restored,
                         restore original configuration after remote
                         access.

           C2            Remote configuration changes are effected
                         immediately, changes are made now.

                    REMOTE CONFIGURATION - DATA FORMAT

  Type:          Configuration

  Format:        AT [cmds] %Fn [cmds]

  Description:   Sets parity

    Command                              Function

      %F0         No Parity, 8 data bits

      %F1         Mark Parity, 7 data bits

      %F2         Odd Parity, 7 data bits

      %F3         Even Parity, 7 data bits

                 REMOTE CONFIGURATION - SERIAL PORT SPEED

  Type:          Configuration

  Format:        AT [cmds] %Bn [cmds]

  Description:   Remotely configures the serial port speed

    Command                              Function

      %B0         Set serial port speed to 110Kbps

      %B1         Set serial port speed to 300Kbps

      %B2         Set serial port speed to 600bps

      %B3         Set serial port speed to 1200bps

      %B4         Set serial port speed to 2400bps

      %B5         Set serial port speed to 4800bps

      %B6         Set serial port speed to 9600bps

      %B7         Set serial port speed to 19.2Kbps

      %B8         Set serial port speed to 38.4Kbps

      %B9         Set serial port speed to 57.6Kbps

      %B10        Set serial port speed to 115.2Kbps

                REMOTE CONFIGURATION - V.25bis CLOCK SPEED

  Type:          Configuration

  Format:        AT [cmds] %Nn [cmds]

  Description:   Sets the terminal to modem V.25bis clock speed

    Command                              Function

      %N0         Not used

      %N1         Not used

      %N2         Set clock speed to 1200bps

      %N3         Set clock speed to 2400bps

      %N4         Set clock speed to 4800bps

      %N5         Set clock speed to 7200bps

      %N6         Set clock speed to 9600bps

      %N7         Set clock speed to 12Kbps

      %N8         Set clock speed to 14.4Kbps

      %N9         Set clock speed to 16.8Kbps

      %N10        Set clock speed to 19.2Kbps

                           REPEAT COMMAND STRING

  Type:             Configuration

  Format:           AT [cmds] > [cmds]

  Description:      Causes modem to repeat command string until a
                    keyboard key is pressed

                            REPEAT DIAL STRING

  Type:                  Immediate

  Format:                A>

  Description:           Repeat mode enabled and the dial string last
                         executed will be carried out until a connection
                         is established or 10 attempts made.

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

                          REPEAT PREVIOUS COMMAND

  Type:           Immediate

  Format:         A/

  Description:    Repeats previous command, mainly used for redial.

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

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports 4-digit product code

       I1        Reports ROM checksum

       I2        Reports RAM checksum

       I3        Reports call duration (ATK0) or real time (ATK1)

       I4        Reports current command settings

       I5        Reports NVRAM settings

       I6        Reports link diagnostics

       I7        Reports product configuration

      I10        Reports dial security account status information

                               RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] Qn [cmds]

  Description:   Enables modem to send result codes to the DTE

    Command                              Function

       Q0        Result code sending enabled

       Q1        Result code sending disabled

       Q2        Result code sending enabled while in originate mode

                            RESULT CODE FORMAT

  Type:             Configuration

  Format:           AT [cmds] Vn [cmds]

  Description:      Selects word or numeric format for information-text
                    and result codes

     Command                              Function

        V0          Numeric format enabled

        V1          Verbose (word) format enabled

                             RTS TO CTS DELAY

  Type:                  Register

  Format                 AT [cmds] S26=n [cmds]

  Default:               1

  Range:                 0-255

  Unit:                  .01 second

  Description:           Sets the duration of delay for CTS to respond to
                         RTS status change in synchronous mode.

                             SECURITY ACCOUNTS

  Type:               Configuration

  Format:             AT %An=(field parameters) <cr>

  Example:            AT%A0=DOG,Y,Y,N,1-234-567-8901<cr>

  Description:        Make and configure security accounts, (n=0-9)

                             Parameter options

     Password       Account     Dialback    Allow new    Dialback number
     enabled       enabled      enabled      number

   8-characters       Yes          Yes         Yes        37-characters

  Case sensitive      No           No          No             (0-9)

       DOG            Y            Y            N        1-234-567-8901

                     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, 13-107 enabled

           X2            Busy tone detection disabled, dial tone
                         detection enabled; result codes 0-6, 10, 13-107
                         enabled; also adaptive dialing, wait for second
                         dial tone, and fast dialing enabled.

           X3            Busy tone detection enabled, dial tone detection
                         disabled; result codes 0-5, 7-8, 10, 13-107
                         enabled; also adaptive dialing, and wait for
                         answer enabled.

           X4            Busy and dial tone detection enabled; result
                         codes 0-10, 13-107 enabled; also adaptive
                         dialing, wait for second dial tone, wait for
                         answer, and fast dialing enabled.

           X5            Busy tone detection enabled, dial tone detection
                         disabled; result codes 0-5, 7-107 enabled; also
                         adaptive dialing, wait for second dial tone, and
                         wait for answer enabled.

           X6            Busy and dial tone detection enabled; result
                         codes 0-107 enabled; also adaptive dialing, wait
                         for second dial tone, wait for answer, and fast
                         dialing enabled.

           X7            Busy and dial tone detection enabled; result
                         codes 0-11, 13-107 enabled; also adaptive
                         dialing, wait for second dial tone, wait for
                         answer, and fast dialing enabled.

  Note: Valid numeric result codes; 0-8, 10-13, 18, 20, 21, 25, 47, 85,
  91, 99, 103, and 107.

                                SOFT RESET

  Type:                 Immediate

  Format:               AT [cmds] Z [cmds]

  Description:          Restores modem profiles previously saved in
                        non-volatile RAM

  Note:                 If SW1/J is OFF, then the modem will reset to
                        AT&F0 profile. (External models only)

                               SPEAKER MODE

  Type:                Configuration

  Format:              AT [cmds] Mn [cmds]

  Description:         Selects various speaker options

       Command                             Function

         M0            Speaker disabled

         M1            Speaker enabled until carrier signal detected

         M2            Speaker enabled

         M3            Speaker enabled following dialing, then disabled
                       after carrier signal detected.

                              SPEAKER VOLUME

  Type:          Configuration

  Format:        AT [cmds] Ln [cmds]

  Description:   Controls speaker volume

  Note: Command works for internal models only, externals will return
  OK.

    Command                              Function

       L0        Low volume setting

       L1        Low volume setting

       L2        Medium volume setting

       L3        Highest volume setting

                              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. Valid
                   values 0-255

     Command                              Function

      Sn.b=x       Write to register bit b using values 0 (off) and 1
                   (on) for x

                           STORE ACTIVE PROFILE

  Type:               Configuration

  Format:             AT [cmds] &Wn [cmds]

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

      Command                              Function

        &W0           Write the active profile to stored template 0

        &W1           Write the active profile to stored template 1

                           STORE COMMAND STRING

  Type:                Configuration

  Format:              AT [cmds] &ZCn=(command string)

  Description:         Writes selected command string into the
                       non-volatile memory at location n (n=0-9)

       Command                              Function

        &ZC=n          Writes command string into the non-volatile memory
                       at location n

         &ZC?          Displays stored command string

                             STORE DIAL STRING

  Type:               Configuration

  Format:             AT [cmds] &Zn=(phone # & modifiers)

  Description:        Writes selected dial string into the non-volatile
                      memory at location n (n=0-9)

            Note: The characters described in the D command are valid for
            use in the &Z command.

       Command                              Function

        &Zn?           Displays phone number from non-volatile memory at
                       location n

                                TEST MODES

  Type:              Configuration

  Format:            AT [cmds] &Tn [cmds]

  Description:       Controls loopback tests: analog, digital, remote
                     digital, and self tests.

      Command                              Function

        &T0          Testing disabled

        &T1          Local analog loopback enabled

        &T3          Local digital loopback enabled

        &T4          Remote digital loopback enabled

        &T5          Remote digital loopback prohibited

        &T6          Remote digital loopback initiated

        &T7          Remote digital loopback w/ self-test and error
                     detector in progress

        &T8          Local analog loopback w/ self-test and error
                     detector in progress

                                TEST MODES

  Type:                  Register

  Format:                AT [cmds] S16=n [cmds]

  Default:               0

  Range:                 0-15

  Description:           Controls tests, analog loopback, dial, test
                         pattern and remote digital loopback.

      Bit        Value                        Function

       0                0  Local analog loopback disabled

                       1   Local analog loopback enabled

       1                0   Dial test disabled

                       1    Dial test enabled

       2                0   Test pattern disabled

                       1    Test pattern enabled

       3                0   Remote digital loopback disabled

                       1    Remote digital loopback enabled

                                TEST TIMER

  Type:           Register

  Format          AT [cmds] S18=n [cmds]

  Default:        0

  Range:          0-255

  Unit:           1 second

  Description:    Sets the maximum duration for modem tests

            Note: S18=0 disables the timer and allows an indefinite
            duration.

                               TIME DISPLAY

  Type:              Immediate

  Format:            AT [cmds] Kn [cmds]

  Description:       Displays the current call time or clock time

      Command                              Function

        K0           Display length of last call, if off-line; duration
                     of call while on-line.

        K1           Display actual time (HH:MM:SS)

                                TRANSMITTER

  Type:          Configuration

  Format:        AT [cmds] Cn [cmds]

  Description:   Controls the transmitter.

    Command                              Function

       C0         Disable transmitter, receive-only operation.

       C1         Enable transmitter

                             VOICE/DATA SWITCH

  Type:                  Register

  Format:                AT [cmds] S32=n [cmds]

  Description:           Controls voice/data switch functions

        Command                              Function

         S32=0           All functions disabled

         S32=1           Voice/data, originate

         S32=2           Voice/data, answer

         S32=3           Redial last number

         S32=4           Dial number from stored position 0

         S32=5           Auto-answer on/off toggle

         S32=6           Reset modem

         S32=7           Remote digital loopback initiated

         S32=8           Busy out phone line toggle

         S32=9           Execute command string from &ZC. If there is no
                         command string, the modem acts on S32=1.

                           V.21 - HANDSHAKE TIME

  Type:          Register

  Format:        AT [cmds] S29=n [cmds]

  Default:       20

  Range:         0-255

  Unit:          .1 second

  Description:   Sets length of V.21 handshake

                           V.32 - HANDSHAKE TIME

  Type:          Register

  Format:        AT [cmds] S28=n [cmds]

  Default:       8

  Range:         0-255

  Unit:          .1 second

  Description:   Sets length of V.32 handshake

                            V.25bis Command Set

                          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.

                           CALL REQUESTED NUMBER

  Type:              Immediate

  Format:            CRN<#>

  Description:       Dials the number given; it will ignore spaces and
                     hyphens in the string.

                         CALL REQUEST WITH ADDRESS

  Type:          Immediate

  Format:        CRSn

  Description:   Dials the number stored in NVRAM location n

                          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.

                              PROGRAM NUMBER

  Type:          Configuration

  Format:        PRNn

  Description:   Stores a phone number in memory address n.

                     REQUEST LIST OF FORBIDDEN NUMBERS

  Type:                   Immediate

  Format:                 RFN

  Description:            Requests the list of forbidden numbers from the
                          modem; the modem is unable to dial numbers on
                          this list until its power has been cycled; if
                          this feature is not enabled, the modem will
                          return INV.

                          REQUEST LISTED NUMBERS

  Type:                   Immediate

  Format:                 RLN

  Description:            Requests the modem to return the list of stored
                          numbers in NVRAM; if no numbers are stored, the
                          modem will return LSN.

                            V.25bis Result codes

                          CALL FAILURE INDICATOR

  Type:                     Response

  Format:                   CFIxx

  Description:              Indicates that the attempt to connect failed

      Response            Name                    Description

        CFAB             Abort        The call was aborted because either
                                      no dialtone was detected or a
                                      character was received from the
                                      host computer.

        CFCB            DCE Busy      An incoming call was detected after
                                      the dialing command was issued

        CFET          Engaged Tone    A busy signal was detected

        CFFC            Forbidden     The number given is on the
                          Call        forbidden list

        CFNS           Not Stored     The memory address given did not
                                      contain a valid telephone number

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

        CFRT           Ring Tone      A responding tone was detected, but
                                      the call timed out before it was
                                      completed.

                                CONNECTION

  Type:          Response

  Format:        CNX

  Description:   A connection has been successfully established

                              LIST OF NUMBERS

  Type:          Response

  Format:        LS

  Description:   This code is given in response to a number just dialed

                          LIST OF STORED NUMBERS

  Type:          Response

  Format:        LSN

  Description:   This code is given in response to a RLN command

                     LIST OF STORED FORBIDDEN NUMBERS

  Type:                   Response

  Format:                 LSF

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

                               INCOMING CALL

  Type:          Response

  Format:        INC

  Description:   An incoming call has been detected

                                  INVALID

  Type:                Response

  Format:              INV

  Description:         The modem was issued an improper command, optional
                       parameters maybe displayed.

       Response                           Description

        INVMS          Message syntax error

        INVCU          Unknown command

        INVPS          Parameter syntax error

        INVPV          Parameter value error

                                   VALID

  Type:          Response

  Format:        VAL

  Description:   The command issued is valid and is being executed

