Siemens MC55 AT manual Calling numberstr, Type of numbernum

Parameter Description

<n>(num)

Switch URCs "+CCWA" and "^SCWA" for call waiting on/off

0	Disable display of URCs "+CCWA" and "^SCWA"
1	Enable display of URCs "+CCWA" and "^SCWA"

<mode>(num)

Network operation to be performed for Supplementary service call waiting

0	Disable call waiting (disable service)
1	Enable call waiting (enable service)
2	Query status of call waiting (query service status)

<class>(num)

Integer or sum of integers each representing a class of information, i.e. a bearer service, telecommunication ser- vice or bearer service group as defined in "GSM 02.04".

In the write command, parameter <class> specifies the class of the active call during which an incoming call of any class is to be regarded as a waiting call.

In URC "+CCWA: <calling number>, <type of number>, <class>, , <CLI validity>", parameter <class> specifies the class of the waiting call.

1	Voice
2	Data
	<class> 2 (data) comprises all those <class> values between 16 and 128, that
	are supported both by the network and the MS. This means, a setting made for
	<class> 2 applies to all remaining data classes (if supported). In addition, you
	can assign a different setting to a specific class. For example, you can activate
	call waiting for all data classes, but deactivate it for a specific data class.
4	Fax
[7]	Voice, data and fax (1+2+4)
8	SMS
16	Data circuit sync
32	Data circuit async
64	Dedicated packet access
128	Dedicated PAD access
1...[7]...255	Combination of some of the above classes. For example, the default setting 7
	represents the sum of the integers 1, 2 and 4 (CF for voice, data and fax). The
	value 255 covers all classes. If parameter "class"is omitted, the default value 7
	is used.
<status>(num)
0	Call waiting service is not active
1	Call waiting service is active

<calling number>(str)

Phone number of waiting caller in the format specified by parameter <type of number>.

<type of number>(num)

Type of address octet in integer format (refer to GSM 04.08, subclause 10.5.4.7)

145	<calling number> includes international access code character '+'
MC55_ATC_V04.00	Page 203 of 475	3/17/06
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