User Manual

GM47/GM48 INTEGRATOR’S MANUAL
294
LZT 123 7263 R1A
19.10 AT+CCWA Call Waiting
This command allows control of the call waiting supplementary service
according to 3GPP TS 22.083 [5]. 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>,[<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