Sony Ericsson GM29, Integrator'S Manual, Page: 247 / 264

16. SUPPLEMENTARY SERVICES
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LZT 123 7361 R1B
16.12 AT+CCWA Call Waiting
This command allows control of the call waiting supplementary service
according to 3GPP TS 22.083. Activation, deactivation and status query
are supported. When querying the status of a network service
(<mode>=2) the response line for ‘not active’ case (<status>=0) should
be returned only if service is not active for any <class>. Parameter <n>
is used to disable or enable the presentation of an unsolicited result code
+CCWA: <number>,<type>,<class>,[<alpha>][,<CLI validity>] to the
TE when call waiting service is enabled. The command is abortable
when the network is interrogated.
The interaction of this command with other commands based on other
GSM/UMTS supplementary services is described in the GSM/UMTS
standards.
Test command returns values supported by the TA as a compound
value.
Description Command Possible Responses
Request call
waiting
AT+CCWA=[<n>
[,<mode>
[,<class>]]]
• when<mode>=2 and command
successful:
+CCWA:<status>,<class1>[<CR><LF
>
+CCWA: <status>,<class2>[…]]
+CME ERROR <err>
• OK
• ERROR
Show the current
setting
AT+CCWA? • +CCWA: <n>
+CME ERROR <err>
• OK
• ERROR
Show if the
command is
supported
AT+CCWA=? • +CCWA: (list of supported <n>s)
+CME ERROR <err>
• OK
• ERROR
<n> Description
0 Disable
1 Enable
<mode> Description
0 Disable
1 Enable
2 Query status