Cinterion
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EHS6 AT Command Set
16.7 AT^SNFM
EHS6_ATC_V03.001 15/12/3
Confidential / Released
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16.7 AT^SNFM Set microphone audio path and power supply
The AT^SNFM read command returns the microphone mute status.
The AT^SNFM write command can be used to switch the microphone's audio path (muted / not muted).
The microphone can be muted or activated by changing <MicSwitch> in all audio modes (1 to 10), during a
voice call only. As an alternative, you can use the AT+CMUT command to mute the microphone.
Syntax
Parameter Description
Microphone mute control parameter.
Evaluated only during voice calls.
Command does not depend on audio mode.
0 Mutes the microphone.
1
(P)
Activates the microphone.
Note
• During an active call, users should be aware that when they switch back and forth between different audio
modes (for example handsfree on/off) the value of <MicSwitch> does not change, i.e. the microphone mode
is retained until explicitly changed.
Test Command
AT^SNFM=?
Response(s)
^SNFM: (list of supported <MicSwitch>s)
OK
Read Command
AT^SNFM?
Response(s)
^SNFM: <MicSwitch>
OK
ERROR
+CME ERROR: <err>
Write Command
AT^SNFM=[<MicSwitch>]
Response(s)
OK
ERROR
+CME ERROR: <err>
PIN Last
- + -
<MicSwitch>
(num)
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