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       # MOTOROLA, INC.
       
          BITSURFR PRO EZ
       
          Card Type         ISDN TA                                      
          Chip Set          Unidentified                                 
          I/O Options       Analog adapters (2)                          
          Transfer Rate     56Kbps x 2/64Kbps x 2                        
          Data Bus          Serial                                       
          ISDN Protocol     AIMux, PPP, V.120                            
          Switch Type       5ESS, DMS-100, NI-1                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |     Function     |  Label  |    Function     |    Label    |
          |------------------------------------------------------------|
          | DC power in            |   CN1   | Analog adapter 2 | CN4  |
          |------------------------+---------+------------------+------|
          | Serial port            |   CN2   | Analog adapter 1 | CN5  |
          |------------------------+---------+------------------+------|
          | ISDN U interface       |   CN3   |                  |      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                 Setting                 | Label | Position |
          |-----------------------------------------+-------+----------|
          | í Factory configured - do not alter     | SW1/1 |   Off    |
          |-----------------------------------------+-------+----------|
          | í Factory configured - do not alter     | SW1/2 |   Off    |
          |-----------------------------------------+-------+----------|
          | í Factory configured - do not alter     | SW1/3 |   Off    |
          |-----------------------------------------+-------+----------|
          | í Normal operation                      | SW1/4 |   Off    |
          |-----------------------------------------+-------+----------|
          | TA will reset to factory defaults when  | SW1/4 |    On    |
          | powered up                              |       |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED |    Color     |  Status  |         Condition          |
          |-----+--------------+----------+----------------------------|
          | LS  |     Red      |    On    |        Power is on         |
          |-----+--------------+----------+----------------------------|
          | LS  |    Green     |    On    | TA is ready for operation  |
          |-----+--------------+----------+----------------------------|
          | LS  |  Red/Green   | Blinking |   ISDN not synchronized    |
          |-----+--------------+----------+----------------------------|
          | LS  |     N/A      |   Off    |        Power is off        |
          |-----+--------------+----------+----------------------------|
          |  1  |    Green     |    On    |    Call is connected on    |
          |     |              |          |      analog adapter 1      |
          |-----+--------------+----------+----------------------------|
          |  1  |    Green     | Blinking | Call is being connected on |
          |     |              |          |      analog adapter 1      |
          |-----+--------------+----------+----------------------------|
          |  1  |    Green     |   Off    |  Analog adapter 1 is idle  |
          |-----+--------------+----------+----------------------------|
          |  2  |    Green     |    On    |    Call is connected on    |
          |     |              |          |      analog adapter 2      |
          |-----+--------------+----------+----------------------------|
          |  2  |    Green     | Blinking | Call is being connected on |
          |     |              |          |      analog adapter 2      |
          |-----+--------------+----------+----------------------------|
          |  2  |    Green     |   Off    |  Analog adapter 2 is idle  |
          |-----+--------------+----------+----------------------------|
          | DTE |    Green     |    On    |  Data call connected with  |
          |     |              |          |           V.120            |
          |-----+--------------+----------+----------------------------|
          | DTE |    Green     |   Slow   | Data call being connected  |
          |     |              |  blink   |                            |
          |-----+--------------+----------+----------------------------|
          | DTE |    Green     | Blinking |  Data call connected with  |
          |     |              |          |  single-channel protocol   |
          |-----+--------------+----------+----------------------------|
          | DTE |    Green     |   Fast   |  Data call connected with  |
          |     |              |  blink   |   multi-channel protocol   |
          |-----+--------------+----------+----------------------------|
          | DTE |    Green     |   Off    |  Data call not connected   |
          |-----+--------------+----------+----------------------------|
          | RD  | Unidentified |    On    |    TA is receiving data    |
          |-----+--------------+----------+----------------------------|
          | RD  | Unidentified |   Off    |  TA is not receiving data  |
          |-----+--------------+----------+----------------------------|
          | TD  | Unidentified |    On    |  TA is transmitting data   |
          |-----+--------------+----------+----------------------------|
          | TD  | Unidentified |   Off    |   TA is not transmitting   |
          |     |              |          |            data            |
          +------------------------------------------------------------+
       
          +--------------------------------------------------------+
          |              SUPPORTED STANDARD COMMANDS               |
          |--------------------------------------------------------|
          |                   Basic AT Commands                    |
          |--------------------------------------------------------|
          | +++, A/                                                |
          |--------------------------------------------------------|
          | A, E, H, O, V, W, X, Z                                 |
          |--------------------------------------------------------|
          | &F, &S, &W, &Y, &Z                                     |
          |--------------------------------------------------------|
          |                  Extended AT Commands                  |
          |--------------------------------------------------------|
          | \Q                                                     |
          |--------------------------------------------------------|
          |                      S-Registers                       |
          |--------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S7, S10, S12, S18, S25         |
          |--------------------------------------------------------|
          |      Note: See MHI help file for complete information. |
          +--------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                   BEARER CHANNEL - DATA                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A98=x [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects the Bearer Channel the TA will use  |
          |              | for data calls.                             |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |    %A98=A     | TA will use 3.1KHz audio Bearer Channel.   |
          |---------------+--------------------------------------------|
          |   í %A98=D    | TA will use data Bearer Channel.           |
          |---------------+--------------------------------------------|
          |    %A98=S     | TA will use speech Bearer Channel.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             BEARER CHANNEL - ANALOG ADAPTER 1              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *1%A98=x [cmds]                   |
          |--------------+---------------------------------------------|
          | Description: | Selects the Bearer Channel the TA will use  |
          |              | for calls that are made with analog adapter |
          |              | 1.                                          |
          |------------------------------------------------------------|
          |    Command     |                 Function                  |
          |----------------+-------------------------------------------|
          |    *1%A98=A    | TA will use 3.1KHz audio Bearer Channel.  |
          |----------------+-------------------------------------------|
          |   í *1%A98=S   | TA will use speech Bearer Channel.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             BEARER CHANNEL - ANALOG ADAPTER 2              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *2%A98=x [cmds]                   |
          |--------------+---------------------------------------------|
          | Description: | Selects the Bearer Channel the TA will use  |
          |              | for calls that are made with analog adapter |
          |              | 2.                                          |
          |------------------------------------------------------------|
          |    Command     |                 Function                  |
          |----------------+-------------------------------------------|
          |    *2%A98=A    | TA will use 3.1KHz audio Bearer Channel.  |
          |----------------+-------------------------------------------|
          |   í *2%A98=S   | TA will use speech Bearer Channel.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CALL ANSWERING - 3.1KHz AUDIO                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A94=x [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the TA will auto-answer     |
          |              | incoming calls using the 3.1KHz audio       |
          |              | Bearer Channel.                             |
          |------------------------------------------------------------|
          |       Command        |              Function               |
          |----------------------+-------------------------------------|
          |       í %A94=D       | TA will not answer call.            |
          |----------------------+-------------------------------------|
          |        %A94=E        | TA will answer call.                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CALL ANSWERING - DATA                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A95=x [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the TA will auto-answer     |
          |              | incoming calls using the data Bearer        |
          |              | Channel.                                    |
          |------------------------------------------------------------|
          |       Command        |              Function               |
          |----------------------+-------------------------------------|
          |        %A95=D        | TA will not answer call.            |
          |----------------------+-------------------------------------|
          |       í %A95=E       | TA will answer call.                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CALL ANSWERING - SPEECH BEARER               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A93=x [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the TA will auto-answer     |
          |              | incoming calls using the speech Bearer      |
          |              | Channel.                                    |
          |------------------------------------------------------------|
          |       Command        |              Function               |
          |----------------------+-------------------------------------|
          |       í %A93=D       | TA will not answer call.            |
          |----------------------+-------------------------------------|
          |        %A93=E        | TA will answer call.                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       CALL BUNDLING                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @B0=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the TA will make            |
          |              | two-channel ISDN data calls.                |
          |------------------------------------------------------------|
          |      Command      |                Function                |
          |-------------------+----------------------------------------|
          |      í @B0=1      | Call bundling disabled.                |
          |-------------------+----------------------------------------|
          |       @B0=2       | Call bundling enabled.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CALLER ID                          |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Displays or clears the Caller ID log.       |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |      @L0      | Clears the Caller ID log.                  |
          |---------------+--------------------------------------------|
          |      @L1      | Displays the most recent Caller ID entry.  |
          |---------------+--------------------------------------------|
          |      @L2      | Displays all Caller ID entries.            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CALLER ID AUTO-DISPLAY                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @N1=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the TA will automatically   |
          |              | display Caller ID information upon          |
          |              | receiving an incoming call.                 |
          |------------------------------------------------------------|
          |      Command      |                Function                |
          |-------------------+----------------------------------------|
          |      í @N1=0      | Caller ID auto-display disabled.       |
          |-------------------+----------------------------------------|
          |       @N1=1       | Caller ID auto-display enabled.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CALLER ID LOGGING                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @N0=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the TA will log Caller ID   |
          |              | information.                                |
          |------------------------------------------------------------|
          |       Command       |               Function               |
          |---------------------+--------------------------------------|
          |       í @N0=0       | Caller ID logging disabled.          |
          |---------------------+--------------------------------------|
          |        @N0=1        | Caller ID logging enabled.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CALLER ID SECURITY                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @IS=x [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects which type of security will be used |
          |              | with the Caller ID database.                |
          |------------------------------------------------------------|
          |        Command         |             Function              |
          |------------------------+-----------------------------------|
          |         @IS=B          | Call blocking enabled.            |
          |------------------------+-----------------------------------|
          |        í @IS=D         | Call security disabled.           |
          |------------------------+-----------------------------------|
          |         @IS=S          | Call screening enabled.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CALLER ID SECURITY - ADD                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @IA=<#> [cmds]                    |
          |--------------+---------------------------------------------|
          | Description: | Adds the number specified to the Caller ID  |
          |              | security list.                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CALLER ID SECURITY - CLEAR                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @IC [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Clears the Caller ID security table.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          CALLER ID SECURITY - COPY TO DATA PORTS           |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @IP [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Copies the Caller ID security table to all  |
          |              | data ports.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          CALLER ID SECURITY - COPY TO VOICE PORTS          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @IV [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Copies the Caller ID security table to all  |
          |              | voice ports.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CALLER ID SECURITY - DELETE                 |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @ID=<#> [cmds]                    |
          |--------------+---------------------------------------------|
          | Description: | Deletes the number specified from the       |
          |              | Caller ID security list.                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                CALLER ID SECURITY - DISPLAY                |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @IL [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Displays the Caller ID security table.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       CHAP PASSWORD                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @M20="xxxx" [cmds]                |
          |--------------+---------------------------------------------|
          | Description: | Sets the password the TA will send at       |
          |              | connection for CHAP authentication if CHAP  |
          |              | authentication is requested and no password |
          |              | is provided within the dialing command.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CONFIGURATION WRITE PROTECTION               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @G=x [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the user may store changes  |
          |              | to the TA's configuration.                  |
          |------------------------------------------------------------|
          |       Command        |              Function               |
          |----------------------+-------------------------------------|
          |        í @G=D        | Write protection disabled.          |
          |----------------------+-------------------------------------|
          |         @G=E         | Write protection enabled.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DATA LENGTH                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @P4=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the length of the data words the TA is |
          |              | receiving from the serial port.             |
          |------------------------------------------------------------|
          |        Command         |             Function              |
          |------------------------+-----------------------------------|
          |         @P4=7          | TA uses seven data bits.          |
          |------------------------+-----------------------------------|
          |        í @P4=8         | TA uses eight data bits.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DATA PARITY                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @P3=x [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the parity of the data the TA is       |
          |              | receiving from the serial port.             |
          |------------------------------------------------------------|
          |        Command        |              Function              |
          |-----------------------+------------------------------------|
          |         @P3=E         | TA uses even parity.               |
          |-----------------------+------------------------------------|
          |         @P3=M         | TA uses mark parity.               |
          |-----------------------+------------------------------------|
          |        í @P3=N        | TA uses no parity.                 |
          |-----------------------+------------------------------------|
          |         @P3=O         | TA uses odd parity.                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         DATA STOP                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @P6=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the number of stop bits the TA is      |
          |              | receiving from the serial port.             |
          |------------------------------------------------------------|
          |    Command     |                 Function                  |
          |----------------+-------------------------------------------|
          |    í @P6=0     | TA uses one stop bit.                     |
          |----------------+-------------------------------------------|
          |     @P6=1      | TA uses one and one half stop bits.       |
          |----------------+-------------------------------------------|
          |     @P6=2      | TA uses two stop bits.                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         DCD SIGNAL                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Configures the behaviour of the DCD signal. |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &C0      | DCD forced high.                            |
          |--------------+---------------------------------------------|
          |    í &C1     | DCD normal.                                 |
          |--------------+---------------------------------------------|
          |     &C2      | DCD forced high except during disconnect.   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#>;[cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Dials the telephone number indicated        |
          |              | according to any modifiers included in the  |
          |              | string.                                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     DS=n     | Dial stored telephone number n.             |
          |--------------+---------------------------------------------|
          |  D>P="xxxx"  | Dial and send CHAP password xxxx.           |
          |--------------+---------------------------------------------|
          |      D;      | Modem returned to idle state after dialing. |
          |              | The semicolon can only be placed at the end |
          |              | of the dial command.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         DIAL MODE                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A97=x [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects the type of dialing the TA will     |
          |              | use.                                        |
          |------------------------------------------------------------|
          |        Command         |             Function              |
          |------------------------+-----------------------------------|
          |        í %A97=E        | Enbloc dialing enabled.           |
          |------------------------+-----------------------------------|
          |         %A97=O         | Overlap dialing enabled.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DIRECTORY NUMBER - DATA                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !N1=<#> [cmds]                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the DN for data calls.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            DIRECTORY NUMBER - ANALOG ADAPTER 1             |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *1!N1=<#> [cmds]                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the DN for analog adapter 1.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            DIRECTORY NUMBER - ANALOG ADAPTER 2             |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *2!N1=<#> [cmds]                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the DN for analog adapter 2.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DISPLAY COMMAND SETTINGS                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] >V=x [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Displays the specified command settings.    |
          |------------------------------------------------------------|
          |     Command     |                 Function                 |
          |-----------------+------------------------------------------|
          |      >V=C       | Displays ISDN switch configuration.      |
          |-----------------+------------------------------------------|
          |      >V=G       | Displays global command settings.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DISPLAY COMMAND SETTINGS                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &V=x [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Displays the specified command settings.    |
          |------------------------------------------------------------|
          |     Command      |                Function                 |
          |------------------+-----------------------------------------|
          |        &V        | Displays port settings.                 |
          |------------------+-----------------------------------------|
          |       &V=E       | Displays V.120 command settings.        |
          |------------------+-----------------------------------------|
          |       &V=Z       | DIsplays stored telephone numbers.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DISPLAY FIRMWARE VERSION                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $Q [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays the firmware version number.       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DISPLAY HELP SCREEN                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &H=xxxx,xxxx,xxxx... [cmds]       |
          |--------------+---------------------------------------------|
          | Description: | Displays the help screen for the command or |
          |              | commands indicated. If no commands are      |
          |              | listed, a generic help screen of a list of  |
          |              | all supported commands will be displayed.   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    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      | Tests and displays ROM checksum result.     |
          |--------------+---------------------------------------------|
          |      I3      | Displays board number, firmware revision,   |
          |              | and checksum result.                        |
          |--------------+---------------------------------------------|
          |      I4      | Displays product ID, supported protocols,   |
          |              | firmware date and revision in numeric       |
          |              | format.                                     |
          |--------------+---------------------------------------------|
          |      I8      | Displays product ID, supported protocols,   |
          |              | firmware date and revision.                 |
          |--------------+---------------------------------------------|
          |      I9      | Displays Plug-N-Play information.           |
          |--------------+---------------------------------------------|
          |     I10      | Displays ISDN connection information.       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DTR DIALING                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the TA will automatically   |
          |              | dial the first stored number when DTR is    |
          |              | low and no call is connected.               |
          |------------------------------------------------------------|
          |        Command         |             Function              |
          |------------------------+-----------------------------------|
          |         í &L0          | DTR dialing disabled.             |
          |------------------------+-----------------------------------|
          |          &L1           | DTR dialing enabled.              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         DTR SIGNAL                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Configures the behavior of the DTR signal.  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &D0      | DTR forced high.                            |
          |--------------+---------------------------------------------|
          |     &D1      | TA will enter command mode on low DTR.      |
          |--------------+---------------------------------------------|
          |    í &D2     | TA will disconnect on low DTR.              |
          |--------------+---------------------------------------------|
          |     &D3      | TA will disconnect and reset on low DTR.    |
          |--------------+---------------------------------------------|
          |     &D9      | DTR dialing enabled.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   ECHO CANCELLATION TONE                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A96=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the TA will generate an     |
          |              | echo cancellation tone.                     |
          |------------------------------------------------------------|
          |     Command      |                Function                 |
          |------------------+-----------------------------------------|
          |     í %A96=0     | Echo cancellation tone disabled.        |
          |------------------+-----------------------------------------|
          |      %A96=1      | Echo cancellation tone enabled.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           FACTORY DEFAULT PROFILE - ISDN SWITCH            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] >F [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Returns the command settings pertaining to  |
          |              | the ISDN switch configuration to the values |
          |              | found in the factory default profile.       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      FIRMWARE UPGRADE                      |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] $Y=xxxxxx [cmds]                  |
          |--------------+---------------------------------------------|
          | Description: | Begins a firmware upgrade session with the  |
          |              | password indicated.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 FIRMWARE UPGRADE PASSWORD                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %P1=xxxxxxxx [cmds]               |
          |--------------+---------------------------------------------|
          | Description: | Sets the password required to upgrade the   |
          |              | firmware to the string indicated. The       |
          |              | password must be eight characters or less,  |
          |              | case sensitive. If the password is set to a |
          |              | capital D, the password check will be       |
          |              | disabled.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               ISDN FEATURE - CONFERENCE CALL               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !V3=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 60                                          |
          |--------------+---------------------------------------------|
          | Range:       | 1 - 63                                      |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the ISDN feature code for           |
          |              | conference calling.                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  ISDN FEATURE - DROP CALL                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !V4=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 62                                          |
          |--------------+---------------------------------------------|
          | Range:       | 1 - 63                                      |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the ISDN feature code for call      |
          |              | dropping.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                ISDN FEATURE - TRANSFER CALL                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !V5=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 61                                          |
          |--------------+---------------------------------------------|
          | Range:       | 1 - 63                                      |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the ISDN feature code for call      |
          |              | transferring.                               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              ISDN FEATURE - VOICEMAIL WAITING              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !V8=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 63                                          |
          |--------------+---------------------------------------------|
          | Range:       | 1 - 63                                      |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the ISDN feature code for waiting   |
          |              | voicemail.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         LINE SPEED                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A4=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects the speed at which the TA will      |
          |              | connect.                                    |
          |------------------------------------------------------------|
          |       Command        |              Function               |
          |----------------------+-------------------------------------|
          |       í %A4=0        | Line speed set to 64Kbps.           |
          |----------------------+-------------------------------------|
          |        %A4=1         | Line speed set to 56Kbps.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  LOCAL SERIAL PORT SPEED                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] @P2=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the speed of the local serial port.    |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |    @P2=300    | Sets serial port speed to 300bps.          |
          |---------------+--------------------------------------------|
          |   @P2=1200    | Sets serial port speed to 1200bps.         |
          |---------------+--------------------------------------------|
          |   @P2=2400    | Sets serial port speed to 2400bps.         |
          |---------------+--------------------------------------------|
          |   @P2=4800    | Sets serial port speed to 4800bps.         |
          |---------------+--------------------------------------------|
          |   @P2=9600    | Sets serial port speed to 9600bps.         |
          |---------------+--------------------------------------------|
          |   @P2=19200   | Sets serial port speed to 19.2Kbps.        |
          |---------------+--------------------------------------------|
          |   @P2=38400   | Sets serial port speed to 38.4Kbps.        |
          |---------------+--------------------------------------------|
          |   @P2=57600   | Sets serial port speed to 57.6Kbps.        |
          |---------------+--------------------------------------------|
          | í @P2=115200  | Sets serial port speed to 115.2Kbps.       |
          |---------------+--------------------------------------------|
          |  @P2=230400   | Sets serial port speed to 230.4Kbps. This  |
          |               | disables serial port speed auto-detection. |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    PROTOCOL - B-CHANNEL                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %A2=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects the rate adaptation protocol the TA |
          |              | will use.                                   |
          |------------------------------------------------------------|
          |        Command         |             Function              |
          |------------------------+-----------------------------------|
          |         %A2=2          | V.120 protocol selected.          |
          |------------------------+-----------------------------------|
          |         %A2=3          | PPP protocol selected.            |
          |------------------------+-----------------------------------|
          |        í %A2=95        | AIMux protocol selected.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RESULT CODES                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Qn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables TA to send result codes to the DTE. |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í Q0     | Result codes enabled.                       |
          |--------------+---------------------------------------------|
          |      Q1      | Result codes disabled.                      |
          |--------------+---------------------------------------------|
          |      Q2      | Result codes enabled in originate mode      |
          |              | only.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERVICE PROFILE ID - DATA                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !C6=<#> [cmds]                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the SPID for data calls.               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           SERVICE PROFILE ID - ANALOG ADAPTER 1            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *1!C6=<#> [cmds]                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the SPID for analog adapter 1.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           SERVICE PROFILE ID - ANALOG ADAPTER 2            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *2!C6=<#> [cmds]                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the SPID for analog adapter 2.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          SET DATE                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] >D0=mm/dd/yy [cmds]               |
          |--------------+---------------------------------------------|
          | Description: | Sets the internal clock to the date         |
          |              | specified.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          SET TIME                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] >D1=hh:mm:ss [cmds]               |
          |--------------+---------------------------------------------|
          | Description: | Sets the internal clock to the time         |
          |              | specified.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         SOFT RESET                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] >Z [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Resets TA and command settings pertaining   |
          |              | to the ISDN switch configuration to the     |
          |              | stored profile.                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              STORE ISDN SWITCH CONFIGURATION               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] >W [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Writes the values for the commands          |
          |              | pertaining to the ISDN switch configuration |
          |              | into the non-volatile RAM.                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        SWITCH TYPE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !C0=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects the type of ISDN switch the TA is   |
          |              | connected to.                               |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |     !C0=0     | TA is connected to AT&T 5ESS switch.       |
          |---------------+--------------------------------------------|
          |     !C0=1     | TA is connected to Northern Telecom        |
          |               | DMS-100 switch.                            |
          |---------------+--------------------------------------------|
          |    í !C0=2    | TA is connected to National NI-1 switch.   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       SWITCH VERSION                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !C1=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects the version of ISDN switch the TA   |
          |              | is connected to.                            |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |     !C1=0     | TA is connected to 5ESS point-to-point     |
          |               | switch.                                    |
          |---------------+--------------------------------------------|
          |     !C1=1     | TA is connected to 5ESS multipoint switch. |
          |---------------+--------------------------------------------|
          |     !C1=2     | TA is connected to DMS-100 PVC IC-0        |
          |               | switch.                                    |
          |---------------+--------------------------------------------|
          |     !C1=3     | TA is connected to DMS-100 PVC IC-1        |
          |               | switch.                                    |
          |---------------+--------------------------------------------|
          |    í !C1=4    | TA is connected to NI-1 switch.            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            TERMINAL ENDPOINT IDENTIFIER - DATA             |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] !D3=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 255                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 63, 127, 255                            |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the TEI for data calls. A value of  |
          |              | 127 disables the TEI, and a value of 255    |
          |              | causes the TA to auto-select the TEI.       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |      TERMINAL ENDPOINT IDENTIFIER - ANALOG ADAPTER 1       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *1!D3=n [cmds]                    |
          |--------------+---------------------------------------------|
          | Default:     | 255                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 63, 127, 255                            |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the TEI for analog adapter 1. A     |
          |              | value of 127 disables the TEI, and a value  |
          |              | of 255 causes the TA to auto-select the     |
          |              | TEI.                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |      TERMINAL ENDPOINT IDENTIFIER - ANALOG ADAPTER 2       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *2!D3=n [cmds]                    |
          |--------------+---------------------------------------------|
          | Default:     | 255                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 63, 127, 255                            |
          |--------------+---------------------------------------------|
          | Unit:        | N/A                                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the TEI for analog adapter 1. A     |
          |              | value of 127 disables the TEI, and a value  |
          |              | of 255 causes the TA to auto-select the     |
          |              | TEI.                                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Tn                               |
          |--------------+---------------------------------------------|
          | Description: | Selects test options.                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &T0      | End current test.                           |
          |--------------+---------------------------------------------|
          |     &T1      | Begin local analog loopback test.           |
          |--------------+---------------------------------------------|
          |     &T3      | Begin local digital loopback test.          |
          |--------------+---------------------------------------------|
          |     &T8      | Begin bilateral loopback est                |
          |--------------+---------------------------------------------|
          |     &T9      | Begin terminal loopback test.               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              V.120 MAXIMUM RECEIVE FRAME SIZE              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %E1=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 256                                         |
          |--------------+---------------------------------------------|
          | Range:       | 1 - 260                                     |
          |--------------+---------------------------------------------|
          | Unit:        | 1 byte                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum frame size for             |
          |              | transmission in V.120 mode.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             V.120 MAXIMUM TRANSMIT FRAME SIZE              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %E0=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 256                                         |
          |--------------+---------------------------------------------|
          | Range:       | 1 - 260                                     |
          |--------------+---------------------------------------------|
          | Unit:        | 1 byte                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum frame size for             |
          |              | transmission in V.120 mode.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  V.120 TRANSMISSION TIMER                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %E3=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 5                                           |
          |--------------+---------------------------------------------|
          | Range:       | 1 - 255                                     |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified                                |
          |--------------+---------------------------------------------|
          | Description: | Sets the T200 transmission timer for V.120  |
          |              | mode.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     V.120 WINDOW SIZE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %E2=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Default:     | 8                                           |
          |--------------+---------------------------------------------|
          | Range:       | 1 - 127                                     |
          |--------------+---------------------------------------------|
          | Unit:        | 1 byte                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the window size for V.120 mode.        |
          +------------------------------------------------------------+