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17.12
AT^SNFM Set microphone audio path and power supply
The
read command returns the microphone mute and supply voltage status.
AT^SNFM
The
write command can be used to switch the microphone's audio path (muted / not muted) or to con-
AT^SNFM
trol the power supply of the MICP2 line (microphone input of the second analog audio interface).
The microphone can be muted or activated by changing
voice call only. As an alternative, you can use the
Syntax
Test Command
AT^SNFM=?
Response(s)
^SNFM: (list of supported <MicSwitch>s) , (list of supported <MicVccCtl>s)
OK
Read Command
AT^SNFM?
Response(s)
^SNFM: <MicSwitch>,
OK
Write Command
AT^SNFM=[<MicSwitch>][, <MicVccCtl>]
Response(s)
OK
ERROR
+CME ERROR:
<err>
Reference(s)
SIEMENS
Parameter Description
(num)
<MicSwitch>
Microphone mute control parameter.
Evaluated only during voice calls and if
Command does not depend on audio mode.
0
(P)
1
(num)
<MicVccCtl>
Microphone supply voltage control parameter. Setting applies to microphone input 2 only.
CME error is given if
<MicSwitch>
0
1
(P)
2
MC55_ATC_V04.00
Confidential / Released
AT+CMUT
<MicVccState>
<MicVccCtl>
Mutes the microphone.
Activates the microphone.
is not omitted. Enter for example AT^SNFM=,1 or AT^SNFM=,2.
Supply voltage is always switched off.
Supply voltage is always switched on.
Supply voltage state during voice calls is controlled by the ME. Actual value is
determined by parameter data set of the selected audio mode.
Page 413 of 475
in all audio modes (1 to 6) and during a
<MicSwitch>
command to mute the microphone.
PIN
ASC0 ASC1
MUX1
!
%
%
%
is omitted, e.g. AT^SNFM=1.
MUX2
MUX3 Charge
%
%
!
!
Last
!
3/17/06
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