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TC63_ATC_V00.490

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5/24/05

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• 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 

 is a global setting. This means, when another audio mode is selected

during a call, the value of 

 does not change. This is also true for mute operation which can be set

 or 

: 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 

is fix.

• For use after restart of the module, you are advised to store the selected mode to the audio profile saved with

. Otherwise, audio mode 1 will be active each time the module is powered up.

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 

 need

not be changed.

Settings for the handset: 

Settings for the handsfree device: 

To store the configuration to the user defined audio profile: 

To switch back and forth: 

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: 

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: 

AT^SNFS=4

OK

AT^SAIC?

Factory default of AT^SAIC assigned to audio mode 4.

^SAIC: 2,1,1

OK

AT^SNFS=2

OK

AT^SAIC?

Factory default of AT^SAIC assigned to audio mode 2.

^SAIC: 2,2,2

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

AT^SNFS=4

OK

AT^SAIC=2,2,2

OK

AT^SNFS=2

OK

AT^SAIC=2,1,1

OK