SHARK MULTIMEDIA
BABY TIGER-288R
| 
 Card Type  | 
 Modem  | 
| 
 Chipset  | 
 Rockwell RCV288DPi  | 
| 
 I/O Options  | 
 Microphone in, modem audio, speaker out, voice, speakerphone, DVSD  | 
| 
 Maximum Data Rate  | 
 28.8Kbps  | 
| 
 Maximum Fax Rate  | 
 14.4Kbps  | 
| 
 Data Modulation  | 
 Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 Rockwell V.FC  | 
| 
 Fax Modulation  | 
 ITU-T V.17, V.21CH2, V.27ter, V.29, V.33  | 
| 
 Error Correction/Compression  | 
 MNP5, MNP10, V.42, V.42bis  | 
| 
 Fax Class  | 
 Class I & II  | 
| 
 Data Bus  | 
 16-bit ISA  | 
| 
 Card Size  | 
 Full height, half length  | 

| 
 CONNECTIONS  | |||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | 
| 
 Telephone line in  | 
 CN1  | 
 Speaker out  | 
 CN4  | 
| 
 Telephone line out  | 
 CN2  | 
 Modem audio in/out  | 
 CN5  | 
| 
 Microphone in  | 
 CN3  | ||
| 
 SUPPORTED STANDARD COMMANDS  | 
| 
 Basic AT Commands  | 
| 
 +++, ‘comma’, A/  | 
| 
 A, B, E, H, L, M, N, O, P, Q, T, V, W, X, Y, Z  | 
| 
 &C, &D, &F, &G, &K, &M, &P, &Q, &R, &S, &T, &V, &W, &X, &Y, &Z  | 
| 
 Extended AT Commands  | 
| 
 \A, \B, \K, \N  | 
| 
 %C, %E, %L, %Q  | 
| 
 Special AT Commands  | 
| 
 #CID, +MS  | 
| 
 S-Registers  | 
| 
 S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S24, S25  | 
| 
 S26, S27, S29, S30, S31, S32, S33, S36, S38, S39, S46, S48, S86, S91, S92, S95, S201  | 
Note: See MHI help file for complete information.  | 
Proprietary AT Command Set
| 
 AUTOSYNC OPTIONS  | ||
| 
 Type:  | 
 Register  | |
| 
 Format  | 
 AT [cmds] S19=n [cmds]  | |
| 
 Default:  | 
 26  | |
| 
 Range:  | 
 0 - 30  | |
| 
 Description:  | 
 Controls autosync protocol, HDLC address detection, bit coding, and HDLC idle.  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 0  | 
 Not used  | 
| 
 1  | 
 0 í 1 | 
 Binary synchronous protocol used. HDLC protocol used.  | 
| 
 2  | 
 í 01  | 
 HDLC address detect disabled. HDLC address detect enabled.  | 
| 
 3  | 
 0 í 1 | 
 NRZI bit coding used. NRZ bit coding used.  | 
| 
 4  | 
 0 í 1 | 
 HDLC idle sends MARK. HDLC idle sends FLAG or SYNC.  | 
| 
 AUTOSYNC HDLC ADDRESS  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] S20=n [cmds]  | 
| 
 Default:  | 
 0  | 
| 
 Range:  | 
 0-255  | 
| 
 Unit:  | 
 Unidentified  | 
| 
 Description:  | 
 Sets the HDLC address and binary synchronous character.  | 
| 
 BIT-MAPPED REGISTER S28  | ||
| 
 Format  | 
 AT [cmds] S28=n [cmds]  | |
| 
 Default:  | 
 0  | |
| 
 Range:  | 
 0 - 153  | |
| 
 Description:  | 
 Controls V.23 split speed, half duplex, pulse dialing, and MNP10 link negotiation.  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 2 - 0  | 
 000  | 
 Not used.  | 
| 
 4, 3  | 
 í 0001 10 11  | 
 39ms make/61ms break at 10pps. 33ms make/67ms break at 10pps. 39ms make/61ms break at 20pps. 33ms make/67ms break at 20pps.  | 
| 
 5  | 
 0  | 
 Not used.  | 
| 
 7, 6  | 
 í 0001 10  | 
 Link will be negotiated at highest possible speed. Link will be negotiated at 1200bps. Link will be negotiated at 4800bps.  | 
| 
 BIT-MAPPED REGISTER S40  | ||
| 
 Format  | 
 AT [cmds] S40=n [cmds]  | |
| 
 Default:  | 
 107  | |
| 
 Range:  | 
 0 - 255  | |
| 
 Description:  | 
 Controls power level and break handling; selects MNP extended services, link negotiation, and block size.  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 0  | 
 0 í 1 | 
 MNP10 disabled. MNP10 enabled.  | 
| 
 1  | 
 0 í 1 | 
 MNP10 at 2400 and 1200bps disabled. MNP10 at 2400 and 1200bps enabled.  | 
| 
 2  | 
 í 01  | 
 Power level adjustment enabled. Power level adjustment disabled.  | 
| 
 5, 4, 3  | 
 000 001 010 011 100 í 101 | 
 \K0 set. \K1 set. \K2 set. \K3 set. \K4 set. \K5 set.  | 
| 
 7, 6  | 
 00 í 0110 11  | 
 MNP block size is 64 characters. MNP block size is 128 characters. MNP block size is 192 characters. MNP block size is 256 characters.  | 
| 
 BIT-MAPPED REGISTER S41  | ||
| 
 Format  | 
 AT [cmds] S41=n [cmds]  | |
| 
 Default:  | 
 131  | |
| 
 Range:  | 
 0 - 139  | |
| 
 Description:  | 
 Selects compression, auto-retrain and auto-fallback/fall-forward, and low-speed MNP10.  | |
| 
 Note:  | 
 Be aware that bit 6 is out of order.  | |
| 
 Bit  | 
 Value  | 
 Function  | 
| 
 1, 0  | 
 00 01 10 í 11 | 
 Data compression disabled. MNP5 enabled. V.42bis enabled. MNP5 and V.42bis enabled.  | 
| 
 6, 2  | 
 í 0001 10  | 
 Auto-retrain disabled. Auto-retrain enabled. Auto-fallback/fall-forward enabled.  | 
| 
 5 - 3  | 
 000  | 
 Not used.  | 
| 
 7  | 
 0 í 1 | 
 MNP10 at 2400 and 1200bps disabled. MNP10 at 2400 and 1200bps enabled.  | 
| 
 DIAL  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] D <#> [cmds] | 
| 
 Description:  | 
 Dials the telephone number indicated according to any modifiers included in the string.  | 
| 
 Command  | 
 Function  | 
| 
 DJ  | 
 MNP10 link will be negotiated at 1200bps for this call.  | 
| 
 DK  | 
 MNP10 power level adjustment enabled for this call.  | 
| 
 DL  | 
 Re-dial last number.  | 
| 
 DP  | 
 Pulse dialing enabled.  | 
| 
 DT  | 
 Tone dialing enabled.  | 
| 
 DW  | 
 Dialing resumed following dial tone detection.  | 
| 
 D,  | 
 Dialing paused for amount of time specified in S8 register.  | 
| 
 D!  | 
 Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.  | 
| 
 D@  | 
 Wait for Quiet Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.  | 
| 
 D^  | 
 Calling tone toggled from current state for this call.  | 
| 
 D&  | 
 Wait for prompt tone detection function enabled. Waits for prompt tone for amount of time specified by the S7 command.  | 
| 
 D;  | 
 Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.  | 
| 
 DISPLAY INFORMATION  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] In [cmds]  | 
| 
 Description:  | 
 Displays information requested about the modem.  | 
| 
 Command  | 
 Function  | 
| 
 I0  | 
 Displays product identification code.  | 
| 
 I1  | 
 Displays ROM checksum.  | 
| 
 I1  | 
 Displays ROM checksum.  | 
| 
 I3  | 
 Displays firmware model, revision, and interface.  | 
| 
 I4  | 
 Displays OEM string.  | 
| 
 I5  | 
 Displays country code.  | 
| 
 I6  | 
 Displays data pump model and revision.  | 
| 
 I7  | 
 Displays the DAA code.  | 
| 
 DISTINCTIVE RING  | |||||
| 
 Format:  | 
 AT [cmds] -SDR=n [cmds]  | ||||
| 
 Default:  | 
 Unidentified  | ||||
| 
 Range:  | 
 0 - 7  | ||||
| 
 Description:  | 
 Selects which distinctive ring signals the modem will respond to.  | ||||
| 
 Bit  | 
 Value  | 
 Function  | |||
| 
 0  | 
 0 1  | 
 Do not respond to distinctive ring type 1. Respond to distinctive ring type 1.  | |||
| 
 1  | 
 0 1  | 
 Do not respond to distinctive ring type 2. Respond to distinctive ring type 2.  | |||
| 
 2  | 
 0 1  | 
 Do not respond to distinctive ring type 3. Respond to distinctive ring type 3.  | |||
| 
 DSVD MODE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] -SSE=n [cmds]  | 
| 
 Description:  | 
 Select whether the modem will use DSVD mode.  | 
| 
 Command  | 
 Function  | 
| 
 í -SSE=0 | 
 DSVD mode disabled.  | 
| 
 -SSE=1  | 
 DSVD mode enabled.  | 
| 
 LINE SPEED  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] S37=n [cmds]  | 
| 
 Description:  | 
 Sets the maximum allowable data exchange rate attempted during the handshaking process.  | 
| 
 Command  | 
 Function  | 
| 
 S37=0  | 
 Attempt to connect at fastest common speed.  | 
| 
 S37=1  | 
 Attempt to connect at 300bps.  | 
| 
 S37=2  | 
 Attempt to connect at 300bps.  | 
| 
 S37=3  | 
 Attempt to connect at 300bps.  | 
| 
 S37=5  | 
 Attempt to connect with V.22 at 1200bps.  | 
| 
 S37=6  | 
 Attempt to connect with V.22bis at 2400bps.  | 
| 
 S37=7  | 
 Attempt to connect with V.23.  | 
| 
 S37=8  | 
 Attempt to connect with V.32 or V.32bis at 4800bps.  | 
| 
 S37=9  | 
 Attempt to connect with V.32 or V.32bis at 9600bps.  | 
| 
 S37=10  | 
 Attempt to connect with V.32bis at 12Kbps.  | 
| 
 S37=11  | 
 Attempt to connect with V.32bis at 14.4Kbps.  | 
| 
 S37=12  | 
 Attempt to connect with V.32bis at 7200bps.  | 
| 
 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=2  | 
 Modem will operate in fax class II mode.  | 
| 
 #CLS=8  | 
 Modem will operate in voice mode.  | 
| 
 RPI CONFIGURATION  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format:  | 
 AT [cmds] +Hn [cmds]  | |
| 
 Description:  | 
 Configures the Rockwell Protocol Interface.  | |
| 
 Command  | 
 Function  | |
| 
 +H0  | 
 RPI disabled.  | |
| 
 +H1  | 
 RPI enabled and local serial port speed set to 19.2Kbps.  | |
| 
 +H2  | 
 RPI enabled and local serial port speed set to 38.4Kbps.  | |
| 
 +H3  | 
 RPI enabled and local serial port speed set to 57.6Kbps.  | |
| 
 SPEAKERPHONE OPTIONS  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format:  | 
 AT [cmds] #SPK=x,y,z [cmds]  | |
| 
 Description:  | 
 Sets various options for speakerphone functions.  | |
| 
 Command  | 
 Function  | |
| 
 x =0 | 
 Microphone enabled.  | |
| 
 x =1 | 
 Microphone disabled.  | |
| 
 x =2 | 
 Microphone enabled with maximum gain, speaker disabled.  | |
| 
 Default (y):  | 
 5  | |
| 
 Range (y):  | 
 0 - 16  | |
| 
 Unit (y):  | 
 -2 dBm  | |
| 
 Description (y):  | 
 Sets the attenuation level for speaker output in voice mode.  | |
| 
 z =0 | 
 Microphone gain set to 0 dBm.  | |
| 
 z =1 | 
 Microphone gain set to 6 dBm.  | |
| 
 z =2 | 
 Microphone gain set to 9.5 dBm.  | |
| 
 z =3 | 
 Microphone gain set to 12 dBm.  | |
| 
 TEST MODE - PTT  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] %TTnn [cmds]  | 
| 
 Description:  | 
 Send PTT test signals for line tests.  | 
| 
 Command  | 
 Function  | 
| 
 %TT00  | 
 Send DTMF digit 0.  | 
| 
 %TT01  | 
 Send DTMF digit 1.  | 
| 
 %TT02  | 
 Send DTMF digit 2.  | 
| 
 %TT03  | 
 Send DTMF digit 3.  | 
| 
 %TT04  | 
 Send DTMF digit 4.  | 
| 
 %TT05  | 
 Send DTMF digit 5.  | 
| 
 %TT06  | 
 Send DTMF digit 6.  | 
| 
 %TT07  | 
 Send DTMF digit 7.  | 
| 
 %TT08  | 
 Send DTMF digit 8.  | 
| 
 %TT09  | 
 Send DTMF digit 9.  | 
| 
 %TT0A  | 
 Send DTMF digit *.  | 
| 
 %TT0B  | 
 Send DTMF digit #.  | 
| 
 %TT0C  | 
 Send DTMF digit A.  | 
| 
 %TT0D  | 
 Send DTMF digit B.  | 
| 
 %TT0E  | 
 Send DTMF digit C.  | 
| 
 %TT0F  | 
 Send DTMF digit D.  | 
| 
 %TT10  | 
 Send V.21 channel 1 mark symbol.  | 
| 
 %TT11  | 
 Send V.21 channel 2 mark symbol.  | 
| 
 %TT12  | 
 Send V.23 backward channel mark symbol.  | 
| 
 %TT13  | 
 Send V.23 forward channel mark symbol.  | 
| 
 %TT15  | 
 Send V.22 originate mark symbol at 1200bps.  | 
| 
 %TT16  | 
 Send V.22bis originate mark symbol at 2400bps.  | 
| 
 %TT17  | 
 Send V.22 answer signal with guard tone if required.  | 
| 
 TEST MODE - PTT (CON'T)  | ||
| 
 Command  | 
 Function  | |
| 
 %TT18  | 
 Send V.22bis answer signal with guard tone if required.  | |
| 
 %TT19  | 
 Send V.21 channel 1 space symbol.  | |
| 
 %TT1A  | 
 Send V.21 channel 2 space symbol.  | |
| 
 %TT1B  | 
 Send V.23 backward channel space symbol.  | |
| 
 %TT1C  | 
 Send V.23 forward channel space symbol.  | |
| 
 %TT20  | 
 Send V.32 9600bps carrier.  | |
| 
 %TT21  | 
 Send V.32bis 14.4Kbps carrier.  | |
| 
 %TT30  | 
 Send silence (on-line), i.e., go off-hook.  | |
| 
 %TT31  | 
 Send V.25 answer tone.  | |
| 
 %TT32  | 
 Send 1800 Hz guard tone.  | |
| 
 %TT33  | 
 Send 1300Hz V.25 calling tone.  | |
| 
 %TT34  | 
 Send 1100Hz fax calling tone.  | |
| 
 %TT40  | 
 Send V.21 channel 2 carrier.  | |
| 
 %TT41  | 
 Send V.27ter 2400bps carrier.  | |
| 
 %TT42  | 
 Send V.27ter 4800bps carrier.  | |
| 
 %TT43  | 
 Send V.29 7200bps carrier.  | |
| 
 %TT44  | 
 Send V.29 9600bps carrier.  | |
| 
 %TT45  | 
 Send V.17 7200bps long train carrier.  | |
| 
 %TT46  | 
 Send V.17 7200bps short train carrier.  | |
| 
 %TT47  | 
 Send V.17 9600bps long train carrier.  | |
| 
 %TT48  | 
 Send V.17 9600bps short train carrier.  | |
| 
 %TT49  | 
 Send V.17 12Kbps long train carrier.  | |
| 
 %TT4A  | 
 Send V.17 12Kbps short train carrier.  | |
| 
 %TT4B  | 
 Send V.17 14.4Kbps long train carrier.  | |
| 
 %TT4C  | 
 Send V.17 14.4Kbps short train carrier.  | |
| 
 %TT5a,b,c,d,e  | 
 Send V.FC carrier according to the parameters given. See the %TT6... command for information on the parameters.  | |
| 
 %TT6a,b,c,d,e  | 
 Send V.34 carrier according to the parameters given. The c and e parameters have no function.  | |
| 
 Parameter  | 
 Function  | |
| 
 a=0  | 
 Data rate for carrier is 2400bps for V.34 only.  | |
| 
 a=1  | 
 Data rate for carrier is 4800bps for V.34 only.  | |
| 
 a=2  | 
 Data rate for carrier is 7200bps for V.34 only.  | |
| 
 a=3  | 
 Data rate for carrier is 9600bps for V.34 only.  | |
| 
 a=4  | 
 Data rate for carrier is 12Kbps for V.34 only.  | |
| 
 a=5  | 
 Data rate for carrier is 14.4Kbps.  | |
| 
 a=6  | 
 Data rate for carrier is 16.8Kbps.  | |
| 
 a=7  | 
 Data rate for carrier is 19.2Kbps.  | |
| 
 a=8  | 
 Data rate for carrier is 21.6Kbps.  | |
| 
 a=9  | 
 Data rate for carrier is 24Kbps.  | |
| 
 a=A  | 
 Data rate for carrier is 26.4Kbps.  | |
| 
 a=B  | 
 Data rate for carrier is 28.8Kbps.  | |
| 
 TEST MODE - PTT (CON'T)  | ||
| 
 Command  | 
 Function  | |
| 
 %TT6a,b,c,d,e  | 
 í b=0 | 
 Baud rate for carrier is 2400 baud.  | 
| 
 b=2  | 
 Baud rate for carrier is 2800 baud.  | |
| 
 b=3  | 
 Baud rate for carrier is 3000 baud.  | |
| 
 b=4  | 
 Baud rate for carrier is 3200 baud.  | |
| 
 b=5  | 
 Baud rate for carrier is 3429 baud.  | |
| 
 c=2B  | 
 Set V.FC carrier bias to -100Hz.  | |
| 
 c=3E  | 
 Set V.FC carrier bias to -10Hz.  | |
| 
 c=3F  | 
 Set V.FC carrier bias to -5Hz.  | |
| 
 í c=40 | 
 Set V.FC carrier bias to 0Hz.  | |
| 
 c=41  | 
 Set V.FC carrier bias to +5Hz.  | |
| 
 c=42  | 
 Set V.FC carrier bias to +10Hz.  | |
| 
 c=54  | 
 Set V.FC carrier bias to +100Hz.  | |
| 
 í d=0 | 
 Auxiliary channel carrier disabled.  | |
| 
 d=1  | 
 Auxiliary channel carrier enabled.  | |
| 
 e=0  | 
 Upper band edge compensation set to 0dB.  | |
| 
 e=1  | 
 Upper band edge compensation set to 1dB.  | |
| 
 e=2  | 
 Upper band edge compensation set to 2dB.  | |
| 
 e=3  | 
 Upper band edge compensation set to 3dB.  | |
| 
 e=4  | 
 Upper band edge compensation set to 4dB.  | |
| 
 e=5  | 
 Upper band edge compensation set to 5dB.  | |
| 
 e=6  | 
 Upper band edge compensation set to 6dB.  | |
| 
 e=7  | 
 Upper band edge compensation set to 7dB.  | |
| 
 e=8  | 
 Upper band edge compensation set to 8dB.  | |
| 
 e=9  | 
 Upper band edge compensation set to 9dB.  | |
| 
 e=A  | 
 Upper band edge compensation set to 10dB.  | |
| 
 e=B  | 
 Upper band edge compensation set to 12dB.  | |
| 
 e=C  | 
 Upper band edge compensation set to 13dB.  | |
| 
 e=D  | 
 Upper band edge compensation set to 14dB.  | |
| 
 e=E  | 
 Upper band edge compensation set to 15dB.  | |
| 
 e=F  | 
 Upper band edge compensation set to 22dB.  | |
| 
 TONE DETECTION  | |||||
| 
 Format:  | 
 AT [cmds] #VTD=x,y,z [cmds]  | ||||
| 
 Default:  | 
 x ,y,z 3F | ||||
| 
 Range:  | 
 0 - 3F (hexadecimal)  | ||||
| 
 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 í 1 | 
 DTMF tones are not detected. DTMF tones are detected.  | |||
| 
 1  | 
 0 í 1 | 
 V.25 1300Hz calling tone is not detected. V.25 1300Hz calling tone is detected.  | |||
| 
 2  | 
 0 í 1 | 
 T.30 1100Hz fax tone is not detected. T.30 1100Hz fax tone is detected.  | |||
| 
 3  | 
 0 í 1 | 
 V.25/T.30 2100Hz answer tone is not detected. V.25/T.30 2100Hz answer tone is detected.  | |||
| 
 4  | 
 0 í 1 | 
 Bell 2225Hz answer tone is not detected. Bell 2225Hz answer tone is detected.  | |||
| 
 5  | 
 0 í 1 | 
 Call progress tones are not detected. Call progress tones are detected.  | |||
| 
 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 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:  | 
 100  | 
| 
 Range:  | 
 0 - 255  | 
| 
 Unit:  | 
 100 mS  | 
| 
 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  | 
| 
 #VSR=7200  | 
 Selects a sampling rate of 7.2KHz.  | 
| 
 #VSR=11025  | 
 Selects a sampling rate of 11.025KHz in PCM encoding only.  | 
| 
 VOICE SILENCE DETECTION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] #VSD=n [cmds]  | 
| 
 Description:  | 
 Selects whether the modem will use silence detection to pause recording during periods of silence.  | 
| 
 Command  | 
 Function  | 
| 
 í #VSD=0 | 
 Silence detection disabled.  | 
| 
 #VSD=1  | 
 Silence detection enabled.  | 
| 
 VOICE SILENCE DETECTION TIME  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] #VSP=n [cmds]  | 
| 
 Default:  | 
 Unidentified  | 
| 
 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.  |