User guide

Developers guidelines | AT commands
112 June 2010
AT+CCWA Call waiting (ver. 2)
<status>:
<status> Description
0 Not active
1 Active
Description: 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/enable the
presentation of an unsolicited result code +CCWA:
<number>,<type>,<class> to the TE when call waiting service is enabled.
Command is abortable when 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.
Execution
command: AT+CCWA=[<n>[,<mode>[,<class>]]]
Execution command
response: When<mode>=2 and command successful:
+CCWA:<status>,<class1>[<CR><LF>
+CCWA: <status>,<class2>
[…]]
Read command: AT+CCWA?
Read command
response: +CCWA: <n>
Test command: AT+CCWA=? Shows if the command is supported.
Test command
response: +CCWA: (list of supported <n>s)
Parameters:
<n>:
<n> Description
0 Disable. Default value
1 Enable
<mode>:
<mode> Description
0 Disable
1 Enable
2 Query status
<classx>: