Siemens MC55 manual Microphone selection

MC55 AT Command Set

16.8 AT^SAIC

<mic>(num)(^SNFW)

s

mobile

Microphone selection
1	Microphone 1
2	Microphone 2

<ep>(num)(^SNFW)

Select differential earpiece amplifier

1	Selects the earpiece amplifier 1
2	Selects the earpiece amplifier 2
3	Selects both amplifiers. Note that both amplifiers are connected in parallel and
	therefore, get the same output power if <ep>=3.

Notes

•The AT^SAIC Write command is usable only in audio modes 2 - 6. If AT^SNFS=1, any attempt to use the AT^SAIC Write command returns "+CME ERROR: operation not allowed". This is because all default param- eters in audio mode 1 are determined for type approval and are not adjustable.

•To allocate a specific audio mode to one of the audio interfaces, first select the audio mode with AT^SNFS and then choose the interface using AT^SAIC.

•The factory defaults of AT^SAIC vary with the selected audio mode. If AT^SNFS=1 or 4 or 5, then AT^SAIC=2,1,1.

If AT^SNFS=2 or 3 or 6, then AT^SAIC=2,2,2. AT^SNFD can be used to reset the factory defaults.

•For use after restart of the ME, you are advised to store the settings of AT^SAIC and AT^SNFS to the audio profile set with AT^SNFW. Otherwise, audio mode 1 (AT^SNFS=1) and audio interface 2 (AT^SAIC=2,1,1) will be active each time the ME is powered up.

MC55_ATC_V01.05	Page 402 of 469	2/10/04
Confidential / Released