Siemens MC55 - Manual (Page 416)

MC55 AT Command Set
16.15 AT^SNFS
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MC55_ATC_V01.05 Page 416 of 469 2/10/04
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Settings for a handsfree device connected to the first analog interface and adjusted to audio mode 2:
To store the configuration to the user defined audio profile:
To switch back and forth:
AT^SNFS=2
OK
AT^SAIC=2,1,1
OK
AT^SNFW
Stores the audio mode and the interface.
OK
AT^SNFS=4
Switches to the handset connected to analog interface 1.
OK
AT^SNFS=2
Switches to the handsfree device at analog interface 2.
OK