User`s manual

Command Reference Manual
6-8 1199
6.2.2.4 +VTX - Start Modem Transmit (Playback)
This command causes the modem to start the voice transmission process.
Syntax
+VTX
Result Codes
CONNECT The modem accepts the command.
ERROR The modem is not connected to at least one off-hook telephone line or one non-telephone line.
6.2.2.5 +VGR - Voice Gain Receive (Record Gain)
This command causes the modem to set the gain for received voice samples.
Syntax
+VGR=<gain> 0 (only valid number) selects automatic gain control
Reporting Current or Selected Values
Command: +VGR?
Response: <gain>
Example: 0 For the default setting.
Reporting Supported Range of Parameter Values
Command: +VGR=?
Response: <gain> range
Example: 0
Result Codes
OK <gain> = 0.
ERROR Otherwise. or if not in Voice Mode.
6.2.2.6 +VGT - Voice Gain Transmit (Playback Volume)
This command causes the modem to set the volume level.
Syntax
+VGT=<level>
Defined Values
<level> Decimal number (120-135) corresponding to the volume level.
Reporting Current or Selected Values
Command: +VGT?
Response: <level>
Example: 128 For the default setting.
Reporting Supported Range of Parameter Values
Command: +VGT=?
Response: <level> range
Example: 120-135
Result Codes
OK <level> = 120-135.
ERROR Otherwise. or if not in Voice Mode.