Manual
Audio Commands 
Gain Control +VGR  
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WM_DEV_OAT_UGD_049 - 001  VOLUME 4  August 23, 2007 
21.6  Gain Control +VGR 
21.6.1  Description 
This command is used by the application to set the speaker gain 
21.6.2  Syntax 
Action command 
AT+VGR=<Rgain> 
OK 
Read command 
AT+VGR? 
+VGR: <Rgain> 
OK 
Test command 
AT+VGR=? 
+VGR: (list of supported <Rgain>s) 
OK 
21.6.3  Parameters and Defined Values 
<Rgain>:  reception gain 
range 0-12 (default value: 6) 
21.6.4  Parameter Storage 
All parameters are stored in EEPROM without using the AT&W command. The 
default values can be restored using AT&F or AT+VIP=1. 










