Comtrol AT Commands - Manual (Page 199)

AT Commands for CX81801/CX06833/CX81300/CX06827 Modems Reference Manual
102184B Conexant 5-23
5.2.3 Speakerphone Commands
+VSP - Speakerphone ON/OFF
This command turns the speakerphone ON or OFF
Syntax
+VSP=<mode>
Defined Values
<mode> Decimal number corresponding to the selected option.
0 The speakerphone function is OFF. (Default.)
1 The speakerphone function is ON.
Reporting Current or Selected Values
Command: +VSP?
Response: <mode>
Example: 0 For the default setting.
Reporting Supported Range of Parameter Values
Command: +VSP=?
Response: (<mode> range)
Example: (0,1)
Result Codes
OK <mode> = 0 or 1.
ERROR Otherwise, or if not in Voice Mode.