Specifications

3GPPTS27.007ATCOMMANDS
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93 HSPA+ATCommandsReferenceGuide
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ParametersandValues
<level> Loudspeakervolume
0‐max ThevalueofmaxcanbereadbyissuingtheTestcommandAT+CLVL=?
Notes
 Reference:3GPPTS27.007.
MicrophoneMuteControl+CM UT
Setcommandenablesordisablesthemutingofthemicrophoneaudiolineduringavoicecall.
Readcommandreportswhetherthemutingofthemicrophoneaudiolineduringavoicecallisenabledornot,in
theformat:
+CMUT:<n>
Testcommandreportsthesupportedvaluesfor<n>parameter.
Syntax
Command Commandtype
AT+CMUT=<n> Set
AT+CMUT? Read
AT+CMUT=? Test
ParametersandValues
<n> 
0 Muteoff,microphoneactive.Default:0.
1 Muteon,microphonemuted.
Note:Thiscommandmutesoractivatesbothmicrophoneaudiopaths,internal
micandexternalmic.
Notes
 Reference:3GPPTS27.007.
SilenceCommand+CSIL
Thiscommandenablesordisablesthesilentmode.Whenthephoneisinsilentmode,allsignalingtonesfromMT
aresuppressed.
Readcommandreportsthecurrentlyselected<mode>intheformat:
+CSIL:<mode>
Testcommandreportsthesupportedrangeofvaluesfor<mode>.
Syntax
Command Commandtype
AT+CSIL=[<mode>]
AT+CSIL? Read
AT+CSIL=? Test