Specifications

TC35i AT Command Set
Confidential / Released
TC35i_ATC_V01.05 Page 82 of 278 04.08.2003
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 command is successful:
If <mode>=2
+CCWA: <status>, <class>
[<CR><LF>+CCWA: ...]
<CR><LF>OK
otherwise
OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
<n> Sets/shows the presentation mode of URC in the TA
0 disable display of the URC “+CCWA” or “^SCWA”
1 enable display of the URC “+CCWA” or “^SCWA”
<status> 0 Call Waiting service not active
1 Call Waiting service active
<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