User's Manual

AT Command Set
MC35_ATC_01_V04.00 Page 67 of 238 02.04.2002
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
+CCWA: <n>, <mode>,<class>,,<CLI validity>
OK/ERROR/+CME ERROR
Response
If <mode>=2 and command is successful
+CCWA: <status>, <class1><CR><LF>
+CCWA: <status>, <class2><CR><LF>...
OK/ERROR/+CME ERROR
Parameter
<n> sets/shows the result code presentation status 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 (default 7)
1voice
2 data
4fax
7 voice, data and fax (1+2+4)
8SMS
16 data circuit sync
32 data circuit async
64 dedicated packet access
128 dedicated PAD access
<number> string type phone number of calling address in format specified by
<type>
<type> type of address octet in integer format (refer to GSM 04.08 sub-
clause 10.5.4.7)
<CLI validity> 0CLI valid
1 CLI has been withheld
2 CLI is not available
<status> 0 not active
1active
Reference
GSM 07.07
Parameter <n> is used to disable/enable the presentation of the URC
+CCWA: <number>,<type>,<class>,,<CLI validity>
to the TE when call waiting service is enabled.