
NETCOMM LIMITED

SOCKET ROCKET 336 (CM3660, CM3660M)

Card Type                    Modem (asynchronous)
Chipset                      Unidentified
Maximum Data Rate            33.6Kbps
Maximum Fax Rate             14.4Kbps
Data Modulation              Bell 103A, 212A

                             ITU-T V.21, V.22, V.22bis, V.23, V.32,
                             V.32bis, V.34
Fax Modulation               ITU-T V.17, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis
Fax Class                    Class I & II
Data Bus                     PCMCIA Type II

                                                                      53435

                        SUPPORTED STANDARD COMMANDS

                             Basic AT Commands

  +++, comma, A/

  A, E, H, M, O, P, Q, T, V, W, Z

  &C, &D, &F, &G, &K, &M, &P, &S, &T, &W, &Y, &Z

                           Extended AT Commands

  \A, \B, \J, \N, \Q, \T, \X

  %C, %E, %Q

                                S-Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S25,
  S26, S29, S30, S38, S95

            Note: See MHI help file for complete information.

  UNIDENTIFIED COMMANDS

   Command      Default

     \K            5

     S33           1

                         Proprietary AT Command Set

                            AUTO-ANSWER DEFAULT

  Type:                  Configuration

  Format:                AT [cmds] %Bn [cmds]

  Description:           Selects the default value for register S0 at
                         power-up or when the &F command is issued.

        Command                             Function

          %B0            S0 defaults to 0.

          %B1            S0 defaults to 2.

                         AUTOMATIC RATE SELECTION

  Type:                 Configuration

  Format:               AT [cmds] *An [cmds]

  Description:          Selects how the modem chooses a rate for rate
                        negotiations and retrains. Lower speeds are more
                        noise-resistant.

        Command                             Function

          *A0           Choose lower than average speed.

          *A1           Choose average speed.

          *A2           Choose higher than average speed.

                               BREAK LENGTH

  Type:          Register

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

  Default:       15

  Range:         0 - 255

  Unit:          1 mS

  Description:   Sets the default length of transmitted break signals.

                              BUFFER FAILSAFE

  Type:          Register

  Format:        AT [cmds] S82=n [cmds]

  Default:       60

  Range:         1 - 255

  Unit:          1 byte

  Description:   The function of this command is unidentified.

                           BUFFER MAXIMUM LEVEL

  Type:                   Register

  Format:                 AT [cmds] S80=n [cmds]

  Default:                15

  Range:                  1 - 19

  Unit:                   5% of the total buffer space

  Description:            Sets the percentage of the buffer that must be
                          full before the modem sends the character or
                          signal to pause the data.

                           BUFFER MINIMUM LEVEL

  Type:                   Register

  Format:                 AT [cmds] S81=n [cmds]

  Default:                3

  Range:                  1 - 19

  Unit:                   5% of the total buffer space

  Description:            Sets the percentage of the buffer that must be
                          empty before the modem sends the character or
                          signal to restart the data.

                              BUFFER OVERFLOW

  Type:          Configuration

  Format:        AT [cmds] #On [cmds]

  Description:   Sets the modem's response when a buffer overflows.

    Command                              Function

      #O0        Modem drops incoming characters when buffer overflows.

      #O1        Modem disconnects when transmit buffer overflows.

      #O2        Modem disconnects when receive buffer overflows.

      #O3        Modem disconnects when either buffer overflows.

                              CALLBACK DELAY

  Type:                  Register

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

  Default:               0

  Range:                 0 - 255

  Unit:                  1 second

  Description:           Sets the amount of time that must elapse between
                         the modem disconnecting and beginning a callback
                         sequence.

                               CALLING TONE

  Type:                Configuration

  Format:              AT [cmds] #Cn [cmds]

  Description:         Controls whether the modem will send a V.25
                       calling tone when originating a call.

       Command                              Function

         #C0           Calling tone disabled.

         #C1           1300Hz V.25 calling tone enabled.

                           COMMAND LINE TIMEOUT

  Type:          Register

  Format:        AT [cmds] S69=n [cmds]

  Default:       60

  Range:         0 - 255

  Unit:          1 second

  Description:   The function of this register is unidentified.

                           COMMAND VERIFICATION

  Type:          Configuration

  Format:        AT [cmds] #Vn [cmds]

  Description:   Selects whether the modem verifies entered commands.

    Command                              Function

      #V0        Command verification disabled.

      #V1        Command verification enabled.

                              CONNECT MESSAGE

  Type:              Configuration

  Format:            AT [cmds] %Pn [cmds]

  Description:       Sets when DCD is raised compared to when the CONNECT
                     message is displayed.

      Command                              Function

        %P0          DCD is raised after CONNECT message is displayed.

        %P1          DCD is raised before CONNECT message is displayed.

                                CTS SIGNAL

  Type:          Configuration

  Format:        AT [cmds] %Kn [cmds]

  Description:   Controls the behaviour of the CTS signal.

    Command                              Function

      %K0        CTS normal.

      %K1        CTS forced low during dialing and handshaking.

                                CTS SIGNAL

  Type:           Configuration

  Format:         AT [cmds] %Rn [cmds]

  Description:    Controls the behaviour of the CTS signal.

    Command                              Function

      %R0         CTS signal controlled by &R command.

      %R1         CTS follows RTS.

      %R2         CTS follows RTS when on-line and follows DTR when
                  off-line.

                              DES ENCRYPTION

  Type:                 Configuration

  Format:               AT [cmds] #En [cmds]

  Description:          Selects whether the modem will use DES
                        en/decryption on transmitted and received data.

        Command                             Function

          #E0           DES encryption disabled.

          #E1           DES encryption enabled.

                                   DIAL

  Type:                  Immediate

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

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

        Command                              Function

           DF            Calling tone disabled for this call.

           DL            Re-dial last number.

           DP            Pulse dialing enabled.

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

          DS=n           Dial stored telephone number n.

           DT            Tone dialing enabled.

           DW            Dialing resumed following dial tone detection.

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

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

           D@            Wait for Quiet Answer function enabled. Modem
                         waits until a "quiet answer," a ring-back signal
                         followed by silence up to the time specified in
                         S7, is received prior to executing the rest of
                         the dial string.

           D^            Calling tone disabled for this call.

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

                             DISCONNECT CAUSE

  Type:           Register (read-only)

  Format:         AT [cmds] S42? [cmds]

  Description:    The meanings of the values for this register are
                  unidentified.

                     DISCONNECT CAUSE - PREVIOUS CALL

  Type:           Register (read-only)

  Format:         AT [cmds] S74? [cmds]

  Description:    The meanings of the values for this register are
                  unidentified.

                             DISCONNECT DELAY

  Type:          Configuration

  Format:        AT [cmds] %Dn [cmds]

  Default:       0

  Range:         Unidentified

  Unit:          1 second

  Description:   Sets the delay before disconnection.

                   DISPLAY CONFIGURATION AND STATISTICS

  Type:                Immediate

  Format:              AT [cmds] \S [cmds]

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

                            DISPLAY INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested about the modem.

    Command                              Function

       I0        Displays product identification code.

       I1        Displays ROM checksum.

       I2        Displays ROM checksum result as OK or ERROR.

       I3        Displays modem model.

       I4        Displays firmware revision and release date.

       I5        Displays manufacturer information.

       I9        Displays voice firmware manufacturer.

      I10        Displays modem statistics.

                             DISPLAY PROFILES

  Type:                  Immediate

  Format:                AT [cmds] &V [cmds]

  Description:           Displays the configuration profile indicated. If
                         no profile is specified the active profile will
                         be displayed.

        Command                              Function

          &V0            Displays stored profile 0.

          &V1            Displays stored profile 1.

          &V2            Displays stored profile 2.

          &V3            Displays stored profile 3.

          &V8            Displays all command setting differences between
                         the active and the default profile.

                             DISTINCTIVE RING

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

  Default:                0

  Range:                  0 - 7

  Description:            Selects which distinctive ring signals the
                          modem will respond to and how it will respond.

      Bit          Value                       Function

       0                 0   Respond to ring type 1 as RING.

                        1    Respond to ring type 1 as RING1.

        1                 0  Respond to ring type 2 as RING.

                         1   Respond to ring type 2 as RING2.

        2                 0  Respond to ring type 3 as RING.

                         1   Respond to ring type 3 as RING3.

                                DSR SIGNAL

  Type:          Configuration

  Format:        AT [cmds] %Sn [cmds]

  Description:   Controls the behaviour of the DSR signal.

    Command                              Function

      %S0        DSR normal.

      %S1        DSR follows DTR.

                           DTR CHANGE THRESHOLD

  Type:                Register

  Format               AT [cmds] S75=n [cmds]

  Default:             0

  Range:               0 - 255

  Unit:                10 mS

  Description:         Sets the minimum time the DTR signal must be high
                       to be acknowledged by the modem.

                           EXTENDED RESULT CODES

  Type:               Configuration

  Format:             AT [cmds] %Un [cmds]

  Description:        Selects which extended result codes the modem will
                      display.

      Command                              Function

        %U0           Reliable result codes will be displayed for all
                      error correction connections.

        %U1           V.42 result codes will be displayed.

        %U2           V.42 and V.42bis, MNP2-5, and DES result codes will
                      be displayed.

                     EXTENDED RESULT CODES - RELIABLE

  Type:          Configuration

  Format:        AT [cmds] \Vn [cmds]

  Description:   Selects reliable extended result codes.

    Command                              Function

      \V0        Reliable result codes disabled.

      \V1        Reliable result codes enabled.

      \V8        Extended result codes enabled.

      \V9        Extended result codes enabled with diagnostic
                 information.

                         FLASH DIAL MODIFIER TIME

  Type:                Register

  Format               AT [cmds] S100=n [cmds]

  Default:             5

  Range:               1 - 10

  Unit:                .1 second

  Description:         Time the modem will go on-hook upon receiving the
                       ! dial modifier in dial string.

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] &Kn [cmds]

  Description:   Selects the type of flow control the modem will use.

    Command                              Function

      &K0        Flow control disabled.

      &K3        RTS/CTS flow control enabled.

      &K4        XON/XOFF flow control enabled.

      &K5        Transparent XON/XOFF flow control enabled.

      &K9        Failsafe flow control enabled.

                                   HELP

  Type:          Immediate

  Format:        AT [cmds] ? [cmds]

  Description:   Displays help on the modem's commands.

                            HELP SCREEN LENGTH

  Type:                  Register

  Format:                AT [cmds] S97=n [cmds]

  Default:               24

  Range:                 1 - 255

  Unit:                  1 line

  Description:           Sets the number of lines of text of the help
                         screen the modem will display before pausing.

                             HELP SCREEN WIDTH

  Type:                 Register

  Format:               AT [cmds] S96=n [cmds]

  Default:              80

  Range:                1 - 255

  Unit:                 1 column

  Description:          Sets the number of characters wide the modem will
                        format the help screen to display.

                        INTERRUPT DIALING SEQUENCE

  Type:                Configuration

  Format:              AT [cmds] &Nn [cmds]

  Description:         Selects whether a dialing or
                       connection/handshaking sequence may be interrupted
                       by user input.

       Command                              Function

         &N0           Dial interrupt disabled.

         &N1           Dial interrupt enabled.

                              PROTOCOL/SPEED

  Type:             Configuration

  Format:           AT [cmds] Bn [cmds]

  Description:      Selects the protocol and speed the modem will attempt
                    to connect at.

     Command                              Function

        B0          Select protocol specified by #B.

        B1          Auto-detect the highest common connect speed.

        B2          Select protocol specified by #B.

        B3          Select V.21 at 300bps speed.

        B4          Select Bell 103 at 300bps speed.

        B5          Select V.23 at 1200/75bps speed.

        B6          Select V.22 at 1200bps speed.

        B7          Select Bell 212A at 1200bps speed.

        B8          Select V.22bis at 2400bps speed.

        B9          Auto-detect the highest common connect speed.

       B10          Select V.32 at 4800bps speed.

       B11          Select V.32bis at 7200bps speed.

       B12          Select V.32bis uncoded at 9600bps speed.

       B13          Select V.32bis at 9600bps speed.

       B14          Select V.32bis at 12Kbps speed.

       B15          Select V.32bis at 14.4Kbps speed.

       B16          Select V.34 at 14.4Kbps speed.

       B17          Select V.34 at 16.8Kbps speed.

       B18          Select V.34 at 19.2Kbps speed.

       B19          Select V.34 at 21.6Kbps speed.

       B20          Select V.34 at 24Kbps speed.

       B21          Select V.34 at 26.4Kbps speed.

       B22          Select V.34 at 28.8Kbps speed.

       B23          Select V.34 at 31.2Kbps speed.

       B24          Select V.34 at 33.6Kbps speed.

                          PROTOCOL/SPEED MODIFIER

  Type:                  Configuration

  Format:                AT [cmds] #Bn [cmds]

  Description:           Selects the communication protocol for low-speed
                         data calls.

        Command                              Protocol

          #B0            B2 indicates modem will use ITU-T V.22 at
                         1200bps; B0 indicates modem will use V.23 at
                         1200bps.

          #B1            B0 indicates modem will use ITU-T V.22 at
                         1200bps; B2 indicates modem will use V.23 at
                         1200bps.

                           REMOTE CONFIGURATION

  Type:            Configuration

  Format:          AT [cmds] #An [cmds]

  Description:     Sets whether the modem will allow remote configuration
                   sessions.

     Command                              Function

       #A0         Remote configuration disabled.

       #A1         Remote configuration enabled.

       #A2         Remote configuration enabled and configuration
                   password required.

                      REMOTE CONFIGURATION CHARACTER

  Type:                  Register

  Format:                AT [cmds] S67=n [cmds]

  Default:               42

  Range:                 0 - 127

  Unit:                  1 ASCII character

  Description:           Defines the character that, when sent four times
                         within the guard time set by S66, will notify
                         the modem that a remote configuration session
                         has been requested.

                       REMOTE CONFIGURATION SEQUENCE

  Type:                  Immediate

  Format:                ****<WAIT>

  Description:           Initiates the remote configuration escape
                         sequence, requesting to begin a remote
                         configuration session with the remote modem. The
                         modem must receive the four characters set with
                         the S67 command within the time allotted by S66.

  Note:                  Do not precede this command with AT.

                 REMOTE CONFIGURATION SEQUENCE GUARD TIME

  Type:                  Register

  Format                 AT [cmds] S66=n [cmds]

  Default:               10

  Range:                 1 - 255

  Unit:                  .1 second

  Description:           Maximum time that may elapse for a remote
                         configuration character sequence to be entered
                         in order for it to be executed.

                               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; modem will not send
                        RINGING result code in answer mode.

                               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; basic
                         result codes only enabled.

           X1            Busy and dial tone detection disabled; basic
                         result codes with connect speed enabled.

           X2            Busy tone detection disabled, dial tone
                         detection enabled; basic result codes with
                         connect speed enabled.

           X3            Busy tone detection enabled, dial tone detection
                         disabled; basic result codes with connect speed
                         enabled.

           X4            Busy and dial tone detection enabled; basic
                         result codes with connect speed enabled.

           X5            Busy and dial tone detection enabled; basic
                         result codes with connect speed enabled; RINGING
                         response enabled..

           X6            Busy tone detection enabled, dial tone detection
                         disabled; basic result codes with connect speed
                         enabled; RINGING response enabled.

                            SECURITY MENU MODE

  Type:          Immediate

  Format:        AT [cmds] #S

  Description:   Commands the modem to enter security menu mode.

                            TRANSMISSION LEVEL

  Type:                Configuration

  Format:              AT [cmds] %Ln [cmds]

  Default:             Unidentified

  Range:               0, 11 - 19

  Unit:                -1 dBm

  Description:         Sets the signal level for transmission. %L0 will
                       display the current signal level.

                           V.42 DETECTION PHASE

  Type:             Configuration

  Format:           AT [cmds] #Jn [cmds]

  Description:      Selects whether the modem will go through the V.42
                    detection phase.

     Command                              Function

       #J0          V.42 detection phase disabled.

       #J1          V.42 detection phase enabled.

                         V.42 DETECTION PHASE TIME

  Type:          Register

  Format:        AT [cmds] S62=n [cmds]

  Default:       75

  Range:         0 - 255

  Unit:          10 mS

  Description:   Sets the length of the V.42 detection phase.

                              WELCOME MESSAGE

  Type:                  Configuration

  Format:                AT [cmds] *Wxxxx|xxxx [cmds]

  Description:           Sets the welcome message displayed to incoming
                         connections. The vertical bar (|) character may
                         be used to specify line breaks. The message must
                         be 80 characters or less.

                          WELCOME MESSAGE DISPLAY

  Type:                 Configuration

  Format:               AT [cmds] %Wn [cmds]

  Description:          Selects whether the modem will display the
                        welcome message to incoming connections.

  Note:                 See the *W command for more information.

       Command                              Function

         %W0            Welcome message will not be displayed.

         %W1            Welcome message will be displayed.

