Siemens MC55 AT manual ATSNFS=4 ATSAIC?, ATSNFS=2 ATSAIC?, Atsnfw

Notes

•The write command can be used during a voice call to switch back and forth between different modes. This allows the user, for example, to switch handsfree operation (speakerphone) on and off.

•Users should be aware that <outStep> is a global setting. This means, when another audio mode is selected during a call, the value of <outStep> does not change. This is also true for mute operation which can be set with AT^SNFM or AT+CMUT: If the microphone is muted and the user selects another audio mode during the call, then the microphone remains muted until explicitly changed. Exception: In audio mode 1 <outStep>=4 is fix.

•For use after restart of the module, you are advised to store the selected mode to the audio profile saved with AT^SNFW. Otherwise, audio mode 1 will be active each time the module is powered up.

Examples

EXAMPLE 1

Suppose a user wishes to use alternatively a handsfree device (speakerphone) and a handset. The handset can be connected to the first analog interface and adjusted to audio mode 4. The handsfree device can be attached to the second analog interface and adjusted to audio mode 2. The factory defaults of AT^SAIC need not be changed.

Settings for the handset:

AT^SNFS=4
OK
AT^SAIC?	Factory default of AT^SAIC assigned to audio mode 4.
^SAIC: 2,1,1
OK
Settings for the handsfree device:
AT^SNFS=2
OK
AT^SAIC?	Factory default of AT^SAIC assigned to audio mode 2.
^SAIC: 2,2,2
OK

To store the configuration to the user defined audio profile:

AT^SNFW	Stores the audio mode and the interface.
OK
To switch back and forth:
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

EXAMPLE 2

The following example illustrates a combination of a handset and a handsfree device connected to other inter- faces than those assumed as factory default.

Settings for a handset connected to the second analog interface and adjusted to audio mode 4:

AT^SNFS=4

OK

AT^SAIC=2,2,2

OK

Settings for a handsfree device connected to the first analog interface and adjusted to audio mode 2:

AT^SNFS=2

OK

AT^SAIC=2,1,1

OK

To store the configuration to the user defined audio profile:

MC55_ATC_V04.00	Page 419 of 475	3/17/06
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