Westermo GDW-11 - Manual (Page 119)

Supplementary Services commands 119 6615-2220
+CCWA – Call waiting
Description:
This command allows control of the call waiting supplementary service.
The product will send a +CCWA unsolicited result code when the call waiting service is
enabled.
Syntax:
AT+CCWA=<n>, [ <mode> [, <class> ] ]
Response Syntax: (for <mode>=2 and command successful)
+CCWA: <status> [, <class1> [ <CR><LF>+CCWA: <status>, <class2> [ ... ] ]
Unsolicited result: (when waiting service is enabled)
+CCWA: <number>, <type>, <class> [ ,<alpha>]
Parameters:
<n>
result code presentation status in the TA
0: Disable
1: Enable
<mode>
0: Disable
1: Enable
2: Query status
<type>
Type of address byte in integer format (please refer to Rec GSM 04.08 [8] sub clause
10.5.4.7)
<class>
1: Voice
2: Data
4: Fax
8: Short Messages
7: All classes (voice, data and fax)
A combination of different classes is not supported. It will only result in the activation /
deactivation / status request for all classes (7).
<status>
0: not active
1: active
<alpha>
Optional string type alphanumeric representation of <number> corresponding to the
entry found in the ADN or FDN phonebook.