
TDK ELECTRONICS CORPORATION

DFV3400

Card Type                    Fax, Modem (asynchronous), Voice
Chip Set                     Unidentified
I/O Options                  Speakerphone, Voice-mail
Maximum Data Rate            28.8Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     PCMCIA Type II
Fax Class                    Class I & II
Data Modulation Protocol     Bell 103J/212A

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

                             Rockwell V.FC
Fax Modulation Protocol      ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, MNP10, V.42, V.42bis

                                                                      V1939

                         Proprietary AT Command Set

                 AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD

  Type:          Configuration

  Format:        AT [cmds] %En [cmds]

  Description:   Controls auto-retrain mode and fallback/fall-forward

    Command                              Function

      %E0        Auto-retrain disabled

      %E1        Auto-retrain enabled

      %E2        Auto-fallback/fall-forward enabled

                           BLACK-LISTED NUMBERS

  Type:                  Immediate

  Format:                AT [cmds] *B [cmds]

  Description:           Displays a list of black-listed numbers from the
                         modem; the modem is unable to dial numbers on
                         this list until its power has been cycled.

                                BREAK SEND

  Type:          Configuration

  Format:        AT [cmds] \Bn [cmds]

  Default:       3

  Range:         1-9

  Unit:          .1 second

  Description:   Sends break to modem

                                BREAK TYPE

  Type:                    Configuration

  Format:                  AT [cmds] \Kn [cmds]

  Description:             Configures action of break signal

     Command       Break from DTE       Receive \B        Break received
                                                        from remote modem
                    Normal mode

       \K0        Online command     Buffers cleared    Buffers cleared,
                  mode enabled,      and break sent     break sent to DTE
                  no break sent      to remote modem

       \K1        Buffers cleared    Buffers cleared    Buffers cleared,
                  and break sent     and break sent     break sent to DTE
                  to remote modem    to remote modem

       \K2        Online command     Send break to      Break sent
                  mode enabled,      remote modem       immediately to
                  no break sent      immediately        DTE

       \K3        Send break to      Send break to      Break sent
                  remote modem       remote modem       immediately to
                  immediately        immediately        DTE

       \K4        Online command     Send break with    Break sent with
                  mode enabled,      transmitted data   received data to
                  no break sent                         the DTE

       \K5        Send break with    Send break with    Break sent with
                  transmitted        transmitted data   received data to
                  data                                  the DTE

                                 CALLER ID

  Type:          Configuration

  Format:        AT [cmds] #CID=n [cmds]

  Description:   Controls the Caller ID function

    Command                              Function

     #CID=0      Caller ID disabled

     #CID=1      Caller ID displays formatted data

     #CID=2      Caller ID displays raw hexadecimal data

                             CHARACTER PACING

  Type:                 Configuration

  Format:               AT [cmds] *TJn [cmds]

  Description:          Turns off character pacing; this overrides *TR.
                        The modem will run at maximum speed.

        Command                             Function

         *TJ0           Transmit and receive character pacing disabled

         *TJ3           Transmit and receive character pacing enabled

                                COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] %Cn [cmds]

  Description:   Selects data compression

    Command                              Function

      %C0        Data compression disabled

      %C1        MNP5 enabled

      %C2        V.42bis enabled

      %C3        MNP5 and V.42bis enabled

                               CONNECT MODE

  Type:          Configuration

  Format:        AT [cmds] \Nn [cmds]

  Description:   Controls the type of connection the modem will operate
                 in

    Command                              Function

      \N0        Normal mode enabled

      \N1        Direct mode enabled

      \N2        Reliable mode enabled

      \N3        Auto-reliable mode enabled

      \N4        V.42 reliable mode enabled

      \N5        MNP reliable mode enabled

                               COUNTRY CODE

  Type:              Configuration

  Format:            AT [cmds] *NCn [cmds]

  Description:       Sets country code

      Command           Function          Command           Function

       *NC40         Australia             *NC09        Luxembourg

       *NC01         Austria               *NC21        Mexico

       *NC02         Belgium               *NC10        Netherlands

       *NC27         Bulgaria              *NC48        New Zealand

       *NC20         Canada                *NC11        Norway

       *NC19         Czech Republic        *NC24        Poland

       *NC03         Denmark               *NC12        Portugal

       *NC04         Finland               *NC25        Russia

       *NC05         France                *NC47        Singapore

       *NC06         Germany               *NC26        Slovak Republic

       *NC17         Greece                *NC13        Spain

       *NC23         Hungary               *NC14        Sweden

       *NC07         Ireland               *NC15        Switzerland

       *NC18         Israel                *NC16        United Kingdom

       *NC08         Italy                 *NC22        United States

       *NC43         Japan

                              DELAYED NUMBERS

  Type:                   Immediate

  Format:                 AT [cmds] *D [cmds]

  Description:            Displays a 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.

                                   DIAL

  Type:                 Immediate

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

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

  Note:                 Any combination of modifiers can be used to
                        produce the desired dial functions in sequence.

        Command                             Function

           J            Link will be negotiated at 1200bps

           K            Power level adjustment during MNP 10 link
                        negotiation enabled

           L            Re-dial last number

           P            Pulse dialing enabled

           T            Tone dialing enabled

           R            Not used

          S=n           Dial stored telephone number (n=0-3)

           !            Flash function initiated. Modem commanded to go
                        off-hook for specified time before returning
                        on-hook. S29 controls the time.

           W            Dialing resumed following dial tone detection. S7
                        is used for U.S., S6 for Global class.

           @            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.

           &            Wait for prompt tone detection function enabled.
                        Waits for prompt tone for amount of time
                        specified by the S7 command.

           ,            Dialing paused for amount of time specified in S8
                        register

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

           ^            Calling tone enabled/disabled for this call only

     ( ) - <space>      May be used to format dial string; otherwise they
                        are ignored.

           >            Enabled by country specific parameters, modem
                        generates grounding pulse to EARTH relay output.

                          DOWNLOAD - FLASH MEMORY

  Type:          Immediate

  Format:        AT [cmds] **n [cmds]

  Description:   Sets speed that downloads are sent to flash memory

    Command                              Function

      **0         Download at last speed sensed

      **1         Download at 38.4Kbps

      **2         Download at 57.6Kbps

                        DTE SPEED - HIGH SPEED MODE

  Type:          Configuration

  Format:        AT [cmds] *TRn [cmds]

  Default:       Set by local DTE

  Range:         150-500000

  Unit:          bps

  Description:   Sets DTE speed for high speed mode

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] \Vn [cmds]

  Description:   Selects extended result codes

    Command                              Function

      \V0        Extended result codes disabled

      \V1        Extended result codes enabled

                              IDENTIFY DRIVER

  Type:          Immediate

  Format:        AT [cmds] ^I [cmds]

  Description:   Identifies cellular phone driver

                             LINE SIGNAL LEVEL

  Type:           Immediate

  Format:         AT [cmds] %L [cmds]

  Description:    Returns a value which indicates the received line
                  signal level

                            LINE SIGNAL QUALITY

  Type:          Immediate

  Format:        AT [cmds] %Q [cmds]

  Description:   Returns a value which indicates line signal quality

                    MAXIMUM BLOCK SIZE FOR TRANSMISSION

  Type:          Configuration

  Format:        AT [cmds] \An [cmds]

  Description:   Sets the maximum transmittable block size

    Command                              Function

      \A0        MNP block size is 64 characters

      \A1        MNP block size is 128 characters

      \A2        MNP block size is 192 characters

      \A3        MNP block size is 256 characters

                          MNP - EXTENDED SERVICES

  Type:                 Configuration

  Format:               AT [cmds] -Kn [cmds]

  Description:          Selects MNP extended services

       Command                              Function

         -K0            MNP extended services disabled

         -K1            MNP extended services enabled

         -K2            MNP extended services enabled without indicating
                        MNP on the answer detection phase.

                                MNP10 - EC

  Type:                  Configuration

  Format:                AT [cmds] -SEC=n [cmds]

  Description:           Controls MNP10-EC and transmit level

        Command                              Function

         -SEC=0           MNP10-EC disabled

        -SEC=1,n          MNP10-EC enabled and set transmit level to
                          (n=0-30); if no number is entered for transmit
                          level, S91 is used.

                             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 2400 and 1200bps disabled, fallback to 4800bps

      -Q1        MNP10 at 2400 and 1200bps enabled

                         MNP10 - LINK NEGOTIATION

  Type:          Configuration

  Format:        AT [cmds] *Hn [cmds]

  Description:   Sets the speed at which MNP10 link negotiation will
                 occur

    Command                              Function

      *H0        Link will be negotiated at highest possible speed

      *H1        Link will be negotiated at 1200bps

      *H2        Link will be negotiated at 4800bps

                        MNP10 - POWER LEVEL ADJUST

  Type:                Configuration

  Format:              AT [cmds] )Mn [cmds]

  Description:         Controls automatic transmit power level adjustment
                       during MNP 10 link negotiation

       Command                              Function

         )M0           Power level adjustment disabled

         )M1           Power level adjustment enabled; power level
                       determined by modem.

         )M2           Power level adjustment enabled; power level
                       remains fixed.

                           MODULATION SELECTION

  Type:                  Configuration

  Format:                AT [cmds] +MS=x,y,z,a [cmds]

  Description:           Sets options for active protocol; the transfer
                         rates specified by z and a must be valid for the
                         protocol selected.

        Command                              Function

         +MS?            Displays modulation, automode, minimum rate and
                         maximum rate settings

          x=0            V.21

          x=1            V.22

          x=2            V.22bis

          x=3            V.23

          x=9            V.32

         x=10            V.32bis

         x=11            V.34

         x=64            Bell 103

         x=69            Bell 212A

         x=74            V.FC

          y=0            Automode disabled

          y=1            Auto-detect highest speed enabled

       z, a=300          Set minimum or maximum transfer rate at 300bps,
                         respectively.

       z, a=1200         Set minimum or maximum transfer rate at 1200bps,
                         respectively.

       z, a=2400         Set minimum or maximum transfer rate at 2400bps,
                         respectively.

       z, a=4800         Set minimum or maximum transfer rate at 4800bps,
                         respectively.

       z, a=7200         Set minimum or maximum transfer rate at 7200bps,
                         respectively.

       z, a=9600         Set minimum or maximum transfer rate at 9600bps,
                         respectively.

      z, a=12000         Set minimum or maximum transfer rate at
                         12000bps, respectively.

      z, a=14400         Set minimum or maximum transfer rate at
                         14400bps, respectively.

      z, a=16800         Set minimum or maximum transfer rate at
                         16800bps, respectively.

      z, a=19200         Set minimum or maximum transfer rate at
                         19200bps, respectively.

      z, a=21600         Set minimum or maximum transfer rate at
                         21600bps, respectively.

      z, a=24000         Set minimum or maximum transfer rate at
                         24000bps, respectively.

      z, a=26400         Set minimum or maximum transfer rate at
                         26400bps, respectively.

      z, a=28800         Set minimum or maximum transfer rate at
                         28800bps, respectively.

                       NVRAM - OVERCURRENT COMMANDS

  Type:                  Configuration

  Format:                AT [cmds] *TOn [cmds]

  Description:           Enables the read/write function and allows *TS0
                         and *TS1 settings to be stored in and read from
                         NVRAM

        Command                              Function

          *TO0            Read overcurrent settings from NVRAM

          *TO1            Write overcurrent settings to NVRAM

                            OVERCURRENT DETECT

  Type:                  Configuration

  Format:                AT [cmds] *TS1=n [cmds]

  Description:           Controls the message that is used with ATXn,
                         during overcurrent detection of digital line.

        Command                              Function

         *TS1=0           Standard result code enabled; reports NO
                          CARRIER with X0, X1, and X3 command, and NO
                          DIALTONE with X2, X4 command.

         *TS1=1           Diagnostic result code enabled; reports DIGITAL
                          LINE with X0-X4 command.

         *TS1=2           Overcurrent protection disabled

                      OVERCURRENT PROTECTION TIMEOUT

  Type:                  Configuration

  Format:                AT [cmds] *TS0=n [cmds]

  Default:               20

  Range:                 0-255

  Unit:                  .1 second

  Description:           Checks settle time, 10ms ticks at a time before
                         qualifying digital overcurrent detection.

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports product code

       I1        Reports precomputed checksum

       I2        Reports OK

       I3        Reports firmware part number and revision

       I4        Reports ID string - Hayes-compatible binary

       I5        Reports country code

       I6        Reports modem data pump and internal code revision

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] *TIn [cmds]

  Description:   Displays information requested

    Command                              Function

      *TI0        Reports ROM checksum

      *TI1        Reports flash identification code

      *TI2        Reports Rockwell code version

                       SPECIAL CONFIGURATION COMMAND

  Type:          Configuration

  Format:        AT [cmds] *TSn [cmds]

  Description:   Controls digital line/overcurrent sense

    Command                              Function

     *TSn=x       Stores n in special register x

     *TSn?        Display current sense value n of special register x

                             STATUS INDICATOR

  Format           AT [cmds] ^T6 [cmds]

  Default:         Read only

  Range:           0-191

  Unit:            Bit-mapped

  Description:     Indicate status of cellular phone

   Bit    Value                           Meaning

    0          0   Not receiving a call

              1    Receiving Call

    1          0   Not in use

              1    In use

    2          0   Unlocked, can be used

              1    Locked, cannot be used

    3          0   Service for cell phone

              1    No service for cell phone

    4          0   Powered off

              1    Powered on

    5          0   Cellular Driver not initialized

              1    Cellular Driver initialized

    6         0    Not used

    7          0   Cellular Cable not detected

              1    Cellular Cable detected

                              STATUS-REGISTER

  Type:               Configuration

  Format:             Read: AT? [cmds]

                      Write: AT=n [cmds]

  Description:        Writes to or reads from a specified register

            Note: See the section on S-registers for detailed listing of
            commonly used S-registers.

                              STATUS-REGISTER

  Type:          Configuration

  Format:        AT [cmds] Sn [cmds]

  Description:   Controls action taken to s-registers

    Command                              Function

       n          S-register n established as lasted accessed

      n=x         Set S-register n to value x

       n?         Reports value of S-register n

                              TEST MODE - PTT

  Type:              Immediate

  Format:            AT [cmds] %TTn [cmds]

  Description:       Send PTT test signals for line tests

      Command             Function          Command         Function

   %TT00 - %TT09     DTMF tone dial          %TT21      V.32bis 14400bps
                     digits 0 - 9

       %TT0A         DTMF digit *            %TT30      Silence (on-line;
                                                        i.e., go
                                                        off-hook)

       %TT0B         DTMF digit #            %TT31      V.25 answer tone

       %TT0C         DTMF digit A            %TT32      1800Hz guard tone

       %TT0D         DTMF digit B            %TT33      V.25 calling tone
                                                        (1300Hz)

       %TT0E         DTMF digit C            %TT34      Fax calling tone
                                                        (1100Hz)

       %TT0F         DTMF digit D            %TT40      V.21 channel 2

       %TT10         V.21 channel 1          %TT41      V.27ter 2400bps
                     mark (originate)
                     symbol

       %TT11         V.21 channel 2          %TT42      V27ter 4800bps
                     mark symbol

       %TT12         V.23 backward           %TT43      V.29 7200bps
                     channel mark
                     symbol

       %TT13         V.23 forward            %TT44      V.29 9600bps
                     channel mark
                     symbol

       %TT15         V.22 originate          %TT45      V.17 7200bps long
                     (call mark)                        train
                     signaling at
                     1200bps

       %TT16         V.22bis originate       %TT46      V.17 7200bps long
                     (call mark)                        train
                     signaling at
                     2400bps

       %TT17         V.22 answer             %TT47      V.17 9600bps long
                     signaling (guard                   train
                     tone if PTT
                     required)

       %TT18         V.22bis answer          %TT48      V.17 9600bps
                     signaling (guard                   short train
                     tone if required)

       %TT19         V.21 channel 1          %TT49      V.17 12000bps
                     space symbol                       long train

       %TT1A         V.21 channel 2          %TT4A      V.17 12000bps
                     space symbol                       short train

       %TT1B         V.23 backward           %TT4B      V.17 14400bps
                     channel space                      long train
                     symbol

       %TT1C         V.23 forward            %TT4C      V.17 14400bps
                     channel space                      short train
                     symbol

       %TT20         V.32 9600bps

                           TEST MODE - PTT/V.FC

  Type:               Immediate

  Format:             AT [cmds] %TTn [cmds]

  Description:        Send PTT test signals for line tests. V.FC
                      modulation signal

         Command                             Function

      %TT5R,S,C,A,P       V.FC modulation, R,S,C,A, and P parameters. See
                          below:

    Parameter       Description     Default        V.FC          V.FC
                                                  range       parameter

        A            Auxillary         0           0/1      SECEN
                      channel

        C          Carrier offset      0         +n*5Hz     Fn59, addr
                                                            212

        P          Pre-emphasis        0          0-15      Fn63, addr
                                                            0E6

        R            Data rate                    6-Ch      CONF (+41h)

        S           Symbol rate      0 (2400       0-5      Fn60, addr
                                     baud)       (mask)     101

                       TRANSMISSION LEVEL - CELLULAR

  Type:           Configuration

  Format:         AT [cmds] @Mn [cmds]

  Default:        0

  Range:          11-31

  Unit:           -1dBm

  Description:    Sets the signal level for transmission while in
                  cellular mode

    Command                              Function

      @M0         -26 dBm

      @M1         -30 dBm

    @M2-@M10      -10 dBm

                        V.32 - COMPROMISE EQUALIZER

  Type:          Configuration

  Format:        AT [cmds] :En [cmds]

  Description:   Controls V.32 compromise equalizer

    Command                              Function

      :E0        Equalizer disabled

      :E1        Equalizer enabled

