Siemens MC55 AT 12.6 AT+FCLASS Fax Select, read or test service class, At+Fclass=?, At+Fclass?

12.6 AT+FCLASS Fax: Select, read or test service class

AT+FCLASS sets the ME to a particular mode of operation (data, fax). This allows the ME to process information in a manner suitable for that type of information.

Syntax

Test Command

AT+FCLASS=?

Response(s)

(list of supported <n>s)

OK

Read Command

AT+FCLASS?

Response(s)

<n>

OK

Write Command

AT+FCLASS=<n>

Response(s)

OK

Reference(s)

EIA/TIA-592-A

PIN	ASC0	ASC1	MUX1	MUX2	MUX3	Charge	 Last
!	%	!	%	!	!	!	! !

Parameter Description

<n>(num)(&W)(&V)

0(&F)	Data (e.g. EIA/TIA-602 or ITU V.250)
1	Fax class 1 (EIA/TIA-578-A, Service Class 1)
2	Fax class 2 (EIA/TIA SP-2388, an early draft version of EIA/TIA-592-A - Ser-
	vice class 2.1)

Notes

•Using Error Correcting Mode (ECM) when sending FAXes over GSM should be avoided.

•If <n> is set to 1 or 2, all incoming calls will be answered as fax calls when ATA is issued on multiplexer chan- nel 1 resp. ASC0. For calls explicitly signaled as voice or data calls, this procedure will fail with result code "NO CARRIER", but the incoming call will continue to ring.

It is possible to change the setting of <n> to 0 while the call is ringing, and accept the call afterwards with ATA.

MC55_ATC_V04.00	Page 308 of 475	3/17/06
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