
Chapter 15 – Audio Commands
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide 93
Values: <Level>
If no argument is supplied to the command, the default value is assumed. The configuration is
saved immediately. See the Audio Overview section for more information.
Special
Considerations:
The +CLVL gain value is added onto the +WDGR gain. Depending on the gain setting of +WDGR,
the full range of the +CLVL command may not be realized.
Example: If +WDGR is set to +12dB gain, the +CLVL command cannot add any more positive gain. Setting
the +CLVL command to +12dB gain would not yield a total of +24dB gain, since the gain stage
can only supply a maximum of +12dB gain.
The following formulas govern the total digital receive gain:
Total Gain = (WDGR Gain + CLVL Gain)
-84dB <= Total Gain <= +12dB
Initialize Voice Parameters +VIP
Description: This resets audio parameters back to factory default values.
The following parameters are restored:
Gain control (+VGR, +VGT)
Speaker & microphone selection (+SPEAKER)
Echo cancellation (+ECHO)
Side tone selection (+SIDET)
Digital gain (+WDGT, +WDGR)
Microphone gain enable (+MGE)
Loudspeaker volume level (+CLVL)
Syntax: AT+VIP
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