(TXT) View Source
       
       # ADDTRON TECHNOLOGY CO., LTD.
       
          ARF-3314V/SP
       
          Card Type                    Modem (synchronous/asynchronous)  
          Chipset                      Unidentified                      
          I/O Options                  Microphone in, speaker out, voice 
          Maximum Data Rate            33.6Kbps                          
          Maximum Fax Rate             14.4Kbps                          
          Data Modulation              Unidentified                      
          Fax Modulation               Unidentified                      
          Error Correction/Compression MNP5, MNP10EC, V.42, V.42bis      
          Fax Class                    Class I                           
          Data Bus                     16-bit ISA                        
          Card Size                    Full height, half length          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Function        | Label |     Function      | Label |
          |------------------------+-------+-------------------+-------|
          | Telephone line out     |  CN1  | Microphone in     |  CN3  |
          |------------------------+-------+-------------------+-------|
          | Telephone line in      |  CN2  | Speaker out       |  CN4  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Setting                 | Label | Position  |
          |----------------------------------------+-------+-----------|
          | í Factory configured - do not alter    |  JP8  |   Open    |
          |----------------------------------------+-------+-----------|
          | í Factory configured - do not alter    |  JP9  |   Open    |
          |----------------------------------------+-------+-----------|
          | í Factory configured - do not alter    | JP10  |   Open    |
          |----------------------------------------+-------+-----------|
          | í Factory configured - do not alter    | JP11  |   Open    |
          |----------------------------------------+-------+-----------|
          | í Factory configured - do not alter    | JP12  |   Open    |
          |----------------------------------------+-------+-----------|
          | í Factory configured - do not alter    | JP13  |   Open    |
          |----------------------------------------+-------+-----------|
          | í Factory configured - do not alter    | JP14  |   Open    |
          |----------------------------------------+-------+-----------|
          | Internal audio amplifier enabled       | JP17  | Pins 2 &  |
          |                                        |       | 3 closed  |
          |----------------------------------------+-------+-----------|
          | Internal audio amplifier disabled      | JP17  | Pins 1 &  |
          |                                        |       | 2 closed  |
          |----------------------------------------+-------+-----------|
          | Microphone jack used for voice         | JP18  | Pins 1 &  |
          |                                        |       | 2 closed  |
          |----------------------------------------+-------+-----------|
          | Microphone jack used for music on hold | JP18  | Pins 2 &  |
          |                                        |       | 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        PLUG-N-PLAY                         |
          |------------------------------------------------------------|
          |   Setting   |          JP15           |        JP16        |
          |-------------+-------------------------+--------------------|
          |  Disabled   |    Pins 1 & 2 closed    | Pins 1 & 2 closed  |
          |-------------+-------------------------+--------------------|
          |   Enabled   |    Pins 2 & 3 closed    | Pins 2 & 3 closed  |
          |------------------------------------------------------------|
          |      Note: If Plug-N-Play mode is enabled, all other       |
          |      jumper settings must also be set for Plug-N-Play.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               SERIAL PORT ADDRESS SELECTION                |
          |------------------------------------------------------------|
          |   Setting    |    JP2    |    JP3    |   JP4    |   JP5    |
          |--------------+-----------+-----------+----------+----------|
          | 3F8h (COM1:) |  Closed   |   Open    |  Closed  |   Open   |
          |--------------+-----------+-----------+----------+----------|
          | 2F8h (COM2:) |   Open    |  Closed   |  Closed  |   Open   |
          |--------------+-----------+-----------+----------+----------|
          | 3E8h (COM3:) |  Closed   |   Open    |   Open   |  Closed  |
          |--------------+-----------+-----------+----------+----------|
          | 3E8h (COM4:) |   Open    |  Closed   |   Open   |  Closed  |
          |--------------+-----------+-----------+----------+----------|
          | Plug-N-Play  |   Open    |   Open    |   Open   |   Open   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    INTERRUPT SELECTION                     |
          |------------------------------------------------------------|
          |      Setting       |        JP6        |        JP7        |
          |--------------------+-------------------+-------------------|
          |         3          |      Closed       |       Open        |
          |--------------------+-------------------+-------------------|
          |         4          |       Open        |      Closed       |
          |--------------------+-------------------+-------------------|
          |    Plug-N-Play     |       Open        |       Open        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                SUPPORTED STANDARD COMMANDS                 |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | +++, ‘comma’, A/                                           |
          |------------------------------------------------------------|
          | A, B, D, E, H, L, M, N, O, P, Q, T, V, W, X, Y, Z          |
          |------------------------------------------------------------|
          | &C, &D, &F, &G, &J, &K, &P, &Q, &R, &S, &T, &V, &W, &Y, &Z |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | \A, \B, \N, \V                                             |
          |------------------------------------------------------------|
          | %C, %E, %L, %Q, %TT                                        |
          |------------------------------------------------------------|
          |                    Special AT Commands                     |
          |------------------------------------------------------------|
          | #CID, -K                                                   |
          |------------------------------------------------------------|
          |                        S-Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S14, S16, S18, S21, S22, S23, S25, S27                     |
          |------------------------------------------------------------|
          | S30, S31, S32, S33, S37                                    |
          |------------------------------------------------------------|
          |      Note: See MHI help file for complete information.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      IS-101 COMMANDS                       |
          |------------------------------------------------------------|
          |                        -S Commands                         |
          |------------------------------------------------------------|
          | -DTP, -SAC, -SCD, -SDA, -SDS, -SER, -SFX, -SIC, -SIP,      |
          | -SMT, -SQR, -SSQ, -SSR, -SVV                               |
          |------------------------------------------------------------|
          |      Note: The functions of the IS-101 commands are        |
          |      unidentified.                                         |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                         BREAK TYPE                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Configures action of break signal.          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \K0      | Online command mode enabled, break not sent |
          |              | to remote modem.                            |
          |--------------+---------------------------------------------|
          |     \K1      | Break sent to remote modem and buffers      |
          |              | cleared.                                    |
          |--------------+---------------------------------------------|
          |     \K2      | Online command mode enabled, break not sent |
          |              | to remote modem.                            |
          |--------------+---------------------------------------------|
          |     \K3      | Break sent to remote modem immediately.     |
          |--------------+---------------------------------------------|
          |     \K4      | Online command mode enabled, break not sent |
          |              | to remote modem.                            |
          |--------------+---------------------------------------------|
          |     \K5      | Break sent with transmitted data.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                DISPLAY CHIPSET MANUFACTURER                |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #MFR? [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Displays the voice chipset manufacturer’s   |
          |              | name.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DISPLAY CHIPSET MODEL NAME                 |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #MDL? [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Displays the model name of the modem's      |
          |              | voice chipset.                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DISPLAY CHIPSET REVISION                  |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #REV? [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Displays the revision level of the modem's  |
          |              | voice chipset.                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    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 chip firmware revision.            |
          |--------------+---------------------------------------------|
          |      I2      | Tests and displays ROM checksum result.     |
          |--------------+---------------------------------------------|
          |      I3      | Displays chipset manufacturer.              |
          |--------------+---------------------------------------------|
          |      I4      | Displays chipset configuration.             |
          |--------------+---------------------------------------------|
          |      I5      | Displays reserved chipset configuration.    |
          |--------------+---------------------------------------------|
          |      I6      | Displays country code.                      |
          |--------------+---------------------------------------------|
          |      I7      | Displays board firmware revision.           |
          |--------------+---------------------------------------------|
          |      I8      | Displays firmware features.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        MNP10EC MODE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] -SEC=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects whether the modem will attempt to   |
          |              | use MNP10EC mode during the handshaking     |
          |              | sequence.                                   |
          |------------------------------------------------------------|
          |     Command     |                 Function                 |
          |-----------------+------------------------------------------|
          |     -SEC=0      | MNP10EC handshaking disabled unless a    |
          |                 | V.34 connection is attempted via a       |
          |                 | cellular line.                           |
          |-----------------+------------------------------------------|
          |    í -SEC=1     | MNP10EC handshaking enabled.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       MODE SELECTION                       |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #CLS=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects which mode the modem will operate   |
          |              | in.                                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    #CLS=0    | Modem will operate in data mode.            |
          |--------------+---------------------------------------------|
          |    #CLS=1    | Modem will operate in fax class 1 mode.     |
          |--------------+---------------------------------------------|
          |    #CLS=8    | Modem will operate in voice mode.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       TONE DETECTION                       |
          |------------------------------------------------------------|
          | Format:        | AT [cmds] #VTD=x,y,z [cmds]               |
          |----------------+-------------------------------------------|
          | Default:       | x,y,z 63                                  |
          |----------------+-------------------------------------------|
          | Range:         | 0 - 63                                    |
          |----------------+-------------------------------------------|
          | Description:   | Sets which tones the tone detection will  |
          |                | report.                                   |
          |----------------+-------------------------------------------|
          | Note:          | The value of x sets the tone detection    |
          |                | modes in voice transmit mode, y sets them |
          |                | in voice receive mode, and z sets them in |
          |                | voice command mode.                       |
          |------------------------------------------------------------|
          |   Bit   | Value |                 Function                 |
          |---------+-------+------------------------------------------|
          |    0    |     0 | DTMF tones are not detected.             |
          |         |       |                                          |
          |         |   í 1 | DTMF tones are detected.                 |
          |------------------------------------------------------------|
          |      1      |  0 | V.25 1300Hz calling tone is not         |
          |             |    | detected.                               |
          |             |  í |                                         |
          |             |  1 | V.25 1300Hz calling tone is detected.   |
          |-------------+----+-----------------------------------------|
          |      2      |  0 | T.30 1100Hz fax tone is not detected.   |
          |             |    |                                         |
          |             |  í | T.30 1100Hz fax tone is detected.       |
          |             |  1 |                                         |
          |-------------+----+-----------------------------------------|
          |      3      |  0 | V.25/T.30 2100Hz answer tone is not     |
          |             |    | detected.                               |
          |             |  í |                                         |
          |             |  1 | V.25/T.30 2100Hz answer tone is         |
          |             |    | detected.                               |
          |-------------+----+-----------------------------------------|
          |      4      |  0 | Bell 2225Hz answer tone is not          |
          |             |    | detected.                               |
          |             |  í |                                         |
          |             |  1 | Bell 2225Hz answer tone is detected.    |
          |-------------+----+-----------------------------------------|
          |      5      |  0 | Call progress tones are not detected.   |
          |             |    |                                         |
          |             |  í | Call progress tones are detected.       |
          |             |  1 |                                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               TONE GENERATOR - DIRECT ENTRY                |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VTS=[m, n, x]                    |
          |--------------+---------------------------------------------|
          | Range:       | m 200-3000, n 200-3000, x 0-255             |
          |--------------+---------------------------------------------|
          | Unit:        | m 1 Hz, n 1 Hz, x .1 second                 |
          |--------------+---------------------------------------------|
          | Description: | Generates a dual-frequency tone for         |
          |              | duration x at frequencies m and n.          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             TONE GENERATOR - TIMED PHONE KEYS              |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VTS={a, n}                       |
          |--------------+---------------------------------------------|
          | Range:       | a 0-9, A-D, #, *; x 0-255                   |
          |--------------+---------------------------------------------|
          | Unit:        | x .1 second                                 |
          |--------------+---------------------------------------------|
          | Description: | Generates the DTMF tone for duration x for  |
          |              | the character a.                            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                TONE GENERATOR - PHONE KEYS                 |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VTS=a                            |
          |--------------+---------------------------------------------|
          | Range:       | 0-9, A-D, #, *                              |
          |--------------+---------------------------------------------|
          | Description: | Generates the DTMF tones for the characters |
          |              | in the string for the duration set with     |
          |              | +VBT.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   TONE GENERATOR LENGTH                    |
          |------------------------------------------------------------|
          | Format       | AT [cmds] #VBT=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | 10                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 40                                      |
          |--------------+---------------------------------------------|
          | Unit:        | 0.1 second                                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the length of DTMF tones that are      |
          |              | generated.                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     VOICE BUFFER SPACE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VSK=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | 255                                         |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 255                                     |
          |--------------+---------------------------------------------|
          | Unit:        | 1 byte                                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the amount of data the modem can send  |
          |              | into the buffer after the XOFF signal is    |
          |              | sent.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        VOICE DEVICE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VLS=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects the I/O device for the DSP chip.    |
          |--------------+---------------------------------------------|
          | Note:        | This modem may not support all options      |
          |              | listed below. The #VLS? command will        |
          |              | display the available options.              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í #VLS=0   | Telephone line and handset used for voice   |
          |              | I/O.                                        |
          |--------------+---------------------------------------------|
          |    #VLS=1    | Telephone handset used for voice I/O.       |
          |--------------+---------------------------------------------|
          |    #VLS=2    | Internal speaker only used for voice I/O.   |
          |--------------+---------------------------------------------|
          |    #VLS=3    | External microphone only used for voice     |
          |              | I/O.                                        |
          |--------------+---------------------------------------------|
          |    #VLS=4    | Telephone line and handset used for voice   |
          |              | I/O; internal speaker enabled.              |
          |--------------+---------------------------------------------|
          |    #VLS=5    | Headset used for voice I/O.                 |
          |--------------+---------------------------------------------|
          |    #VLS=6    | Speakerphone used for voice I/O.            |
          |--------------+---------------------------------------------|
          |    #VLS=7    | Handset muted by disconnecting handset or   |
          |              | speakerphone from telephone line.           |
          |--------------+---------------------------------------------|
          |    #VLS=8    | Connects caller ID relay for recording of   |
          |              | conversation over handset.                  |
          |--------------+---------------------------------------------|
          |    #VLS=9    | Connects handset (or speakerphone) to DSP   |
          |              | chip for recording or playback.             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                VOICE - DISPLAY BUFFER SIZE                 |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VBQ? [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Displays the size of the voice buffer.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              VOICE - DISPLAY COMPRESSION TYPE              |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VCI? [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Displays the type of compression currently  |
          |              | in use.                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              VOICE - LOCAL SERIAL PORT SPEED               |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #BDR=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 48                                      |
          |--------------+---------------------------------------------|
          | Unit:        | 2400bps                                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the speed of the local serial port     |
          |              | when in voice mode. A value of 0 indicates  |
          |              | that the modem should auto-detect the       |
          |              | correct serial port speed.                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 VOICE RE-RING DETECT TIME                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VRA=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | 70                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0 -255                                      |
          |--------------+---------------------------------------------|
          | Unit:        | 10 mS                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum time the modem will wait   |
          |              | for the remote station to ring again before |
          |              | it assumes that it has gone off-hook.       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       VOICE RECEIVE                        |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VRX                              |
          |--------------+---------------------------------------------|
          | Description: | Commands the modem to begin receiving voice |
          |              | data.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   VOICE RING DETECT TIME                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VRN=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | 70                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 255                                     |
          |--------------+---------------------------------------------|
          | Unit:        | .1 second                                   |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum time the modem will wait   |
          |              | for the remote station to ring before it    |
          |              | assumes that it went off-hook before it     |
          |              | rang.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    VOICE SAMPLE QUALITY                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VBS=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects the number of bits per sample that  |
          |              | the modem records.                          |
          |--------------+---------------------------------------------|
          | Note:        | This modem may not support all options      |
          |              | listed below. The #VBS? command will        |
          |              | display the available options.              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    #VBS=2    | Modem records 2 bits per sample in ADPCM    |
          |              | encoding.                                   |
          |--------------+---------------------------------------------|
          |    #VBS=3    | Modem records 3 bits per sample in ADPCM    |
          |              | encoding.                                   |
          |--------------+---------------------------------------------|
          |   í #VBS=4   | Modem records 4 bits per sample in ADPCM    |
          |              | encoding.                                   |
          |--------------+---------------------------------------------|
          |    #VBS=8    | Modem records 8 bits per sample in PCM      |
          |              | encoding.                                   |
          |--------------+---------------------------------------------|
          |   #VBS=16    | Modem records 16 bits per sample in PCM     |
          |              | encoding.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    VOICE SAMPLING RATE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VSR=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the sampling rate used when recording  |
          |              | voice signals.                              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          | í #VSR=7200  | Selects a sampling rate of 7.2KHz.          |
          |--------------+---------------------------------------------|
          |  #VSR=8000   | Selects a sampling rate of 8KHz.            |
          |--------------+---------------------------------------------|
          |  #VSR=11025  | Selects a sampling rate of 11.025KHz in PCM |
          |              | encoding only.                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                VOICE SILENCE DETECTION TIME                |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VSP=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Default:     | 55                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0 - 255                                     |
          |--------------+---------------------------------------------|
          | Unit:        | .1 second                                   |
          |--------------+---------------------------------------------|
          | Description: | Sets the minimum amount of silence that the |
          |              | modem will detect.                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             VOICE SILENCE DETECTION THRESHOLD              |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VSS=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the threshold of sensitivity that the  |
          |              | modem uses to determine silence detection.  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    #VSS=0    | Silence detection disabled.                 |
          |--------------+---------------------------------------------|
          |    #VSS=1    | Minimum silence detection sensitivity.      |
          |--------------+---------------------------------------------|
          |    #VSS=2    | Standard silence detection sensitivity.     |
          |--------------+---------------------------------------------|
          |    #VSS=3    | Maximum silence detection sensitivity.      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     VOICE TIMING MARK                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VTM=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Configures timing mark placement.           |
          |------------------------------------------------------------|
          |       Command       |               Function               |
          |---------------------+--------------------------------------|
          |       #VTM=0        | Timing marks disabled.               |
          |---------------------+--------------------------------------|
          |       #VTM=1        | Timing marks enabled.                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  VOICE TRANSMISSION LEVEL                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #TL=hhhh [cmds]                   |
          |--------------+---------------------------------------------|
          | Default:     | 3FFF                                        |
          |--------------+---------------------------------------------|
          | Range:       | 0000 - 7FFF                                 |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified (hexadecimal)                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the transmission level for sending     |
          |              | audio in voice mode.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       VOICE TRANSMIT                       |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VTX                              |
          |--------------+---------------------------------------------|
          | Description: | Commands the modem to begin transmitting    |
          |              | voice data.                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     VOICE VOLUME LEVEL                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VGT=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the volume level when playing back     |
          |              | audio signals.                              |
          |------------------------------------------------------------|
          |       Command        |              Function               |
          |----------------------+-------------------------------------|
          |       #VGT=128       | Low volume setting.                 |
          |----------------------+-------------------------------------|
          |      í #VGT=129      | Medium volume setting.              |
          |----------------------+-------------------------------------|
          |       #VGT=130       | High volume setting.                |
          |----------------------+-------------------------------------|
          |       #VGT=131       | Highest volume setting.             |
          +------------------------------------------------------------+