MC55 AT Command Set

9.7 AT+CCWA

s

mobile

+CCWA: <calling number>, <type of number>, <class>, , <CLI validity>

If <n>=1 and the call waiting supplementary service is enabled in the network, URC "+CCWA" indicates a wait- ing call to the TE. It appears while the waiting call is still ringing.

URC 2

Indication of a call that has been waiting.

^SCWA

If <n>=1 and the call waiting supplementary service is enabled in the network, this URC indicates that a wait- ing call rang when the ME was in online mode during a CSD call, but the calling party hung up before the ME went back to command mode.

Command Description

The test command returns the list of supported "<n>"s.

The read command returns the current value of parameter <n>.

The write command controls the call waiting supplementary service. Activation, deactivation and status query are supported.

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)

 

 

 

 

 

 

 

MC55_ATC_V01.05

Page 227 of 469

2/10/04

Confidential / Released

 

 

 

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Siemens MC55 manual +CCWA calling number, type of number, class, , CLI validity, Scwa