Siemens MC35 Specifications download pdf (Page 75)

AT Command Set

MC35_ATC_01_V05.00 Page 75 of 256 15.07.2002

4.9 AT+CCWA Call waiting

Test command

AT+CCWA=?

Response

+CCWA: (list of supported <n>s)

OK/ERROR/+CME ERROR

Parameter

See write command

Read command

AT+CCWA?

Response

+CCWA: <n>

OK/ERROR/+CME ERROR

Parameter

See write command

Write command

AT+CCWA=

[<n>,[<mode>

[,<class>]]]

This command controls the Call Waiting supplementary service according to

GSM 02.83. Activation, deactivation and status query are supported.

Response

If <mode>=2 and command is successful

+CCWA: <status>, <class1><CR><LF>

+CCWA: <status>, <class2><CR><LF>...

OK/ERROR/+CME ERROR

Parameters

<n> Sets/shows the presentation mode of URC in the TA

0 disable

1 enable

<mode> When <mode> is not given, network is not interrogated.

0 disable

1 enable

2 query status

<class> Sum of integers each representing a class of information (de-

fault 7). Specifies the class of the active call.

1 voice

2 data

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

<status> 0 not active

1 active

Unsolicited Result

Code

If <n>=1 and the Call Waiting service is enabled the following URC indicates a

waiting call to the TE:

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

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 255 256

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Siemens MC35 Specifications Page 75

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