Siemens AC75 - Manual (Page 475)

AC75 AT Command Set
18.15 AT^SNFS
s
AC75_ATC_V01.002 Page 475 of 569 10/30/06
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To store the configuration to the user defined audio profile:
To switch back and forth:
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