Chapter 3: AT Commands Reference
June 30, 2008 AT Commands Reference Manual 3-239

The following table shows the +CLVL parameters.

Example
AT+CLV L?
+CLVL: 7
OK
AT+CLV L=?
+CLVL: (0-7)
OK
AT+CLV L=3
OK
+CMUT, Mute/Unmute Currently Active Microphone Path

This command is used to mute/unmute the currently active microphone path by overriding the

current mute state.

The following table shows the +CMUT parameters.

Table 3-152:+CLVL Parameters

<Parameter> Description
<level> 0-7 Manufacturer-specific volume range. 0 is lowest volume (not mute).
The default value is 7.
Command Type Syntax Response/Action Remarks
Set +CMUT=<state> OK
or:
+CME ERROR: <err>
The Set command enables/disables
uplink voice muting during a voice
call.
Read +CMUT? +CMUT: <state>
OK
The Read command returns the current
uplink voice mute/unmute state.
Test +CMUT=? +CMUT: (list of
supported <state>s)
OK
The Test command returns the possible
<state> values.

Table 3-153:+CMUT Parameters

<Parameter> Description
<n> 0 Unmute microphone path
1 Mute microphone path