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       # MULTIWAVE INNOVATION, INC
       
          COMMWAVE 56K PNP (REV.1.0)
       
          Card Type              Modem (synchronous/asynchronous), Voice 
          Chipset                PCtel                                   
          Maximum Modem Rate     56.0Kbps                                
          Maximum Fax Rate       14.4Kbps                                
          Fax Class              Class I & II                            
          Modem Modulation       Bell 103A/212A                          
          Protocol                                                       
                                 ITU-T V.21, V.22, V.22bis, V.23, V.32,  
                                 V.32bis, V.34                           
          Fax Modulation         ITU-T V.17, V.21 CH2, V.27ter, V.29     
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
          Data Bus               16-bit ISA                              
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Function        |  Label   |   Function   |  Label  |
          |------------------------------------------------------------|
          | Line out                    |    CN1     | Line in  | CN2  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, A/                                                     |
          |------------------------------------------------------------|
          | A, E, H, M, O, P, Q, T, V, W, X, Y, Z                      |
          |------------------------------------------------------------|
          | &C, &F, &G, &P, &W, &Z                                     |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | \A, \B, \G, \K, \L, \N                                     |
          |------------------------------------------------------------|
          | %C, %L, %Q                                                 |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S18, S25, S30, S32, S33, S38, S91                          |
          |------------------------------------------------------------|
          |                                                            |
          |------------------------------------------------------------|
          |                      Special Commands                      |
          |------------------------------------------------------------|
          | #CID                                                       |
          |------------------------------------------------------------|
          |                       Voice Commands                       |
          |------------------------------------------------------------|
          | #BDR, #MDL?, #MFR?, #REV?, #SPK, #TL, #VBQ?, #VBT, #VCI?,  |
          | #VLS, #VRA, #VRN, #VRX                                     |
          |------------------------------------------------------------|
          | #VSD, #VSK, #VSP, #VSS, #VTD, #VTS, #VTX                   |
          |------------------------------------------------------------|
          | Note: See MHI Help File for full command documentation.    |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                    AUTO-MODE DETECTION                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Nn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects various options for the automatic   |
          |              | detection and negotiation of protocols      |
          |              | during the handshake process if the modem   |
          |              | is communicating with a remote modem of     |
          |              | dissimilar speed.                           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      N0      | Auto-mode detection disabled. Handshake     |
          |              | begins at line speed designated by the S37  |
          |              | register                                    |
          |--------------+---------------------------------------------|
          |      N1      | Auto-mode detection enabled. Handshake      |
          |              | conducted according to highest available    |
          |              | line speed                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  COMMUNICATION PROTOCOLS                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Bn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the communication protocol for data |
          |              | calls                                       |
          |------------------------------------------------------------|
          |      Note: The B command allows the simultaneous selection |
          |      of more than one suffix, enabling multiple protocols. |
          |      Originate mode will transmit at 75bps and receive at  |
          |      1200bps; answer mode will transmit at 1200bps and     |
          |      receive at 75bps                                      |
          |------------------------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |      B0      | ITU-T V.22                                  |
          |--------------+---------------------------------------------|
          |     í B1     | Bell 212A                                   |
          |--------------+---------------------------------------------|
          |      B2      | ITU-T V.23                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CONFIGURATION PROFILES                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &V [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays active and stored configuration    |
          |              | profiles                                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &V0      | Display active profile                      |
          |--------------+---------------------------------------------|
          |     &V1      | Display stored profiles                     |
          |--------------+---------------------------------------------|
          |     &V2      | Display stored telephone numbers            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DATA SET READY (DSR)                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects DSR options                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &S0     | DSR forced high                             |
          |--------------+---------------------------------------------|
          |     &S1      | DSR high only while modem is handshaking or |
          |              | connected                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DATA TERMINAL READY (DTR)                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects modem response to DTR               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &D0     | DTR forced high                             |
          |--------------+---------------------------------------------|
          |     &D1      | DTR drop causes online command mode         |
          |--------------+---------------------------------------------|
          |     &D2      | DTR drop causes hang-up                     |
          |--------------+---------------------------------------------|
          |     &D3      | DTR drop causes reset. &Y determines        |
          |              | power-up profile                            |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#> [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Dials telephone number according to any     |
          |              | modifiers included in the string            |
          |--------------+---------------------------------------------|
          | Note:        | Any combination of modifiers can be used to |
          |              | produce the desired dial functions in       |
          |              | sequence.                                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      DL      | Re-dial last number                         |
          |--------------+---------------------------------------------|
          |     DSn      | Dial stored telephone number n              |
          |--------------+---------------------------------------------|
          |      DW      | Dialing resumed following dial tone         |
          |              | detection                                   |
          |--------------+---------------------------------------------|
          |      D,      | Dialing paused for amount of time specified |
          |              | in S8 register                              |
          |--------------+---------------------------------------------|
          |      D@      | Wait for Quite Answer function enabled.     |
          |              | Modem waits until a "quiet answer," a       |
          |              | ring-back signal followed by 5 seconds of   |
          |              | silence                                     |
          |--------------+---------------------------------------------|
          |      D!      | Flash function initiated. Modem commanded   |
          |              | to go off-hook for specified time before    |
          |              | returning on-hook.                          |
          |--------------+---------------------------------------------|
          |      D;      | Modem returned to idle state after dialing. |
          |              | The semicolon can only be placed at the end |
          |              | of the dial command.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables flow control options                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &K0      | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     &K3      | RTS/CTS flow control enabled                |
          |--------------+---------------------------------------------|
          |     &K4      | XON/XOFF flow control enabled               |
          |--------------+---------------------------------------------|
          |     &K5      | Transparent XON/XOFF flow control enabled   |
          |--------------+---------------------------------------------|
          |     &K6      | RTS/CTS & XON/XOFF flow control enabled     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports product code                        |
          |--------------+---------------------------------------------|
          |      I1      | Reports hardware variation                  |
          |--------------+---------------------------------------------|
          |      I2      | Reports internal code                       |
          |--------------+---------------------------------------------|
          |      I3      | Reports software revision number            |
          |--------------+---------------------------------------------|
          |      I4      | Reports product feature listing             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       SPEAKER VOLUME                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Ln [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Controls speaker volume. Hardware currently |
          |              | limits speaker settings to on/off           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      L0      | Speaker disabled                            |
          |--------------+---------------------------------------------|
          |     í L1     | Low volume setting                          |
          |--------------+---------------------------------------------|
          |      L2      | Low volume setting                          |
          |--------------+---------------------------------------------|
          |      L3      | Low volume setting                          |
          +------------------------------------------------------------+
       
           
       
           
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Tn                               |
          |--------------+---------------------------------------------|
          | Description: | Selects test options                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &T0      | End current test                            |
          |--------------+---------------------------------------------|
          |     &T1      | Begin local analog loopback test            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       TRELLIS CODING                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Un [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables trellis coding             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í&U0     | V.32 trellis coding enabled                 |
          |--------------+---------------------------------------------|
          |     &U1      | V.32 trellis coding disabled                |
          +------------------------------------------------------------+
       
                             EXTENDED AT COMMAND SET
       
          +------------------------------------------------------------+
          |         AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls auto-retrain mode and              |
          |              | fallback/fall-forward                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %E0      | Auto-retrain disabled                       |
          |--------------+---------------------------------------------|
          |     %E1      | Auto-retrain enabled                        |
          |--------------+---------------------------------------------|
          |    í %E2     | Auto-retrain & fallback enabled             |
          |--------------+---------------------------------------------|
          |     %E3      | Auto-retrain & fast hang-up enabled         |
          +------------------------------------------------------------+
       
                                         
       
                                         
       
          +------------------------------------------------------------+
          |                       COUNTRY SELECT                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %In [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects country parameters. %I queries      |
          |              | settings                                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %I0      | United States                               |
          |--------------+---------------------------------------------|
          |     %I2      | France                                      |
          |--------------+---------------------------------------------|
          |     %I3      | Germany                                     |
          |--------------+---------------------------------------------|
          |     %I4      | Italy                                       |
          |--------------+---------------------------------------------|
          |     %I5      | Swedan                                      |
          |--------------+---------------------------------------------|
          |     %I6      | United Kingdom                              |
          |--------------+---------------------------------------------|
          |     %I7      | Japan                                       |
          |--------------+---------------------------------------------|
          |     %I8      | Australia                                   |
          |--------------+---------------------------------------------|
          |     %I9      | Spain                                       |
          |--------------+---------------------------------------------|
          |     %I10     | Taiwan                                      |
          |--------------+---------------------------------------------|
          |     %I11     | Singapore                                   |
          |--------------+---------------------------------------------|
          |     %I12     | Korea                                       |
          |--------------+---------------------------------------------|
          |     %I13     | Switzerland                                 |
          |--------------+---------------------------------------------|
          |     %I14     | Norway                                      |
          |--------------+---------------------------------------------|
          |     %I15     | Netherlands                                 |
          |--------------+---------------------------------------------|
          |     %I16     | Belgium                                     |
          |--------------+---------------------------------------------|
          |     %I17     | Canada                                      |
          |--------------+---------------------------------------------|
          |     %I18     | Ireland                                     |
          |--------------+---------------------------------------------|
          |     %I19     | Portugal                                    |
          |--------------+---------------------------------------------|
          |     %I20     | Poland                                      |
          |--------------+---------------------------------------------|
          |     %I21     | Hungary                                     |
          |--------------+---------------------------------------------|
          |     %I22     | Finland                                     |
          |--------------+---------------------------------------------|
          |     %I23     | Denmark                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DYNAMIC CPU LOADING                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects maximaum allowable percentage for   |
          |              | CPU loading                                 |
          |------------------------------------------------------------|
          |    Command     |                 Function                  |
          |----------------+-------------------------------------------|
          |      %N0       | Dynamic CPU loading disabled              |
          |----------------+-------------------------------------------|
          |      %N1       | Dynamic CPU loading not to exceed 10%     |
          |----------------+-------------------------------------------|
          |      %N2       | Dynamic CPU loading not to exceed 20%     |
          |----------------+-------------------------------------------|
          |      %N3       | Dynamic CPU loading not to exceed 30%     |
          |----------------+-------------------------------------------|
          |      %N4       | Dynamic CPU loading not to exceed 40%     |
          |----------------+-------------------------------------------|
          |      %N5       | Dynamic CPU loading not to exceed 50%     |
          |----------------+-------------------------------------------|
          |      %N6       | Dynamic CPU loading not to exceed 60%     |
          |----------------+-------------------------------------------|
          |     í %N7      | Dynamic CPU loading not to exceed 70%     |
          |----------------+-------------------------------------------|
          |      %N8       | Dynamic CPU loading not to exceed 80%     |
          |----------------+-------------------------------------------|
          |      %N9       | Dynamic CPU loading not to exceed 90%     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          ENCODING                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %An [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects encoding                            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %A0      | m - law encoding                            |
          |--------------+---------------------------------------------|
          |     %A1      | A - law encoding                            |
          +------------------------------------------------------------+
       
                                 SPECIAL COMMANDS
       
          +------------------------------------------------------------+
          |                  INVALID TIES RESULT CODE                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] *Qn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the result code sent when an       |
          |              | invalid TIES escape sequence is detected    |
          |              | after OK response has been sent             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í *Q0     | CONNECT xxxx result code sent when an       |
          |              | invalid TIES escape sequence is detected    |
          |              | after OK response has been sent             |
          |--------------+---------------------------------------------|
          |     *Q1      | xxxx result code sent when an invalid TIES  |
          |              | escape sequence is detected after OK        |
          |              | response has been sent                      |
          +------------------------------------------------------------+
       
                               S(status) REGISTERS
       
          +------------------------------------------------------------+
          |                          BIT RATE                          |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S34=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-32                                        |
          |--------------+---------------------------------------------|
          | Unit:        | 32000 + S34 * 2000bps                       |
          |--------------+---------------------------------------------|
          | Description: | Sets maximum bit rate for 56Kbps            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       V.34 BAUD RATE                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S35=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum allowable baud rate for    |
          |              | V.34 negotiation.                           |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S35=0     | 2400bps                                     |
          |--------------+---------------------------------------------|
          |    S35=1     | 2743bps                                     |
          |--------------+---------------------------------------------|
          |    S35=2     | 2800bps                                     |
          |--------------+---------------------------------------------|
          |    S35=3     | 3000bps                                     |
          |--------------+---------------------------------------------|
          |    S35=4     | 3200bps                                     |
          |--------------+---------------------------------------------|
          |    S35=5     | 3429bps                                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       DCE LINE SPEED                       |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S37=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum allowable data exchange    |
          |              | rate attempted during handshake process.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S37=0     | Attempt to connect at highest possible      |
          |              | speed                                       |
          |--------------+---------------------------------------------|
          |    S37=3     | 300bps                                      |
          |--------------+---------------------------------------------|
          |    S37=4     | 1200bps                                     |
          |--------------+---------------------------------------------|
          |    S37=6     | 2400bps                                     |
          |--------------+---------------------------------------------|
          |    S37=7     | 4800bps                                     |
          |--------------+---------------------------------------------|
          |    S37=8     | 7200bps                                     |
          |--------------+---------------------------------------------|
          |    S37=9     | 9600bps                                     |
          |--------------+---------------------------------------------|
          |    S37=10    | 12.0Kbps                                    |
          |--------------+---------------------------------------------|
          |    S37=11    | 14.4Kbps                                    |
          |--------------+---------------------------------------------|
          |    S37=12    | V.34                                        |
          |--------------+---------------------------------------------|
          |    S37=13    | 56.0Kbps                                    |
          +------------------------------------------------------------+
       
                                         
       
                                         
       
          +------------------------------------------------------------+
          |                  CONNECTION FAILURE CODES                  |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S86? [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Reports codes which correspond to the       |
          |              | possible causes of a connection failure     |
          |--------------+---------------------------------------------|
          |    Value     |                   Meaning                   |
          |--------------+---------------------------------------------|
          |      0       | Normal hang up                              |
          |--------------+---------------------------------------------|
          |      4       | Carrier signal lost                         |
          |--------------+---------------------------------------------|
          |      5       | No error-control detected for remote modem  |
          |              | during feature negotiation                  |
          |--------------+---------------------------------------------|
          |      6       | Remote modem failed to respond to feature   |
          |              | negotiation                                 |
          |--------------+---------------------------------------------|
          |      9       | No common protocol found                    |
          |--------------+---------------------------------------------|
          |      12      | No failure - remote modem disconnected      |
          |              | normally                                    |
          |--------------+---------------------------------------------|
          |      13      | Remote modem failed to respond after 10     |
          |              | re-transmissions same message               |
          |--------------+---------------------------------------------|
          |      14      | Violation of negotiated protocol caused     |
          |              | failure                                     |
          |--------------+---------------------------------------------|
          |      15      | Loss of data compression caused failure     |
          |--------------+---------------------------------------------|
          |      20      | Long Space Disconnect (Y1) time limit       |
          |              | reached                                     |
          +------------------------------------------------------------+
       
                                  VOICE COMMANDS
       
          +------------------------------------------------------------+
          |                       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 I mode.     |
          |--------------+---------------------------------------------|
          |    #CLS=8    | Modem will operate in voice mode.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RECORD GAIN                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #RG=hhhh [cmds]                   |
          |--------------+---------------------------------------------|
          | Default:     | 7FFF                                        |
          |--------------+---------------------------------------------|
          | Range:       | 0000 - 7FFF                                 |
          |--------------+---------------------------------------------|
          | Unit:        | Unidentified (hexadecimal)                  |
          |--------------+---------------------------------------------|
          | Description: | Sets the record gain. #RG? queries value    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    VOICE SAMPLE QUALITY                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VBS=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Selects the number of bits per sample that  |
          |              | the modem records.                          |
          |--------------+---------------------------------------------|
          | Note:        | Only 4 bits per sample compression ratio is |
          |              | supported, The #VBS? command will return 4. |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |   í #VBS=4   | Modem records 4 bits per sample in ADPCM    |
          |              | encoding.                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    VOICE SAMPLING RATE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] #VSR=n [cmds]                     |
          |--------------+---------------------------------------------|
          | Description: | Sets the sampling rate used when recording  |
          |              | voice signals.                              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |  #VSR=8000   | Selects a sampling rate of 8000Hz           |
          +------------------------------------------------------------+