Comtrol AT Commands - Manual (Page 181)

AT Commands for CX81801/CX06833/CX81300/CX06827 Modems Reference Manual
102184B Conexant 5-5
Reporting Current or Selected Values
Command: +VNH?
Response: <hook>
Example: 0 For the default setting.
Reporting Supported Range of Parameter Values
Command: +VNH=?
Response: (<hook> range)
Example: (0-2)
Result Codes
OK <hook> = 0-2.
ERROR Otherwise.
5.2.2 Voice Commands
+VIP - Voice Initialize All Parameters
This command causes the modem to initialize all voice parameters to their default values.
Syntax
+VIP
Result Code
OK
ERROR
If not in Voice Mode.
+VRX - Start Modem Receive (Record)
This command causes the modem to start the voice reception process.
Syntax
+VRX
Result Codes
OK
ERROR
If not in Voice Mode.