Specifications

ISU AT Command Reference Phase VII AT Commands
Iridium Proprietary Version 2.45
20 June 2011 93
11.5 +CCWA - Call Waiting service
Command Possible response(s)
+CCWA= None (command ignored without error)
+CCWA=<n>[,<mode>,<classx>]
When command unsuccessful
+CME ERROR: <err>
When <mode>=2 command successful
+CCWA:<status>,<class1>
[<CR><LF>+CCWA:<status>,<class2>
[...]] (but the ISU will in practice
only report a single line, <class1> =
1)
When <mode> not 2 and command successful
None
+CCWA?
Current unsolicited result presentation status
+CCWA:<n>
Test command
+CCWA=?
List of supported <n>s
+CCWA:(0,1)
None
Unsolicited result notifying that a call is waiting
+CCWA:<number>,<type>,<class>
Note: While this command is implemented in Iridium ISU, it may not yet be supported in the Iridium
network. Stand by for an Iridium Technical Bulletin announcing network support for this feature.
This command is based on GSM 07.07 subclause 7.11, and allows control of the Iridium Call Waiting
supplementary service similar to GSM 02.83. Activation, deactivation and status query are supported.
Parameter <n> is used to disable/enable the presentation of the unsolicited result code to the DTE when the
Call Waiting service is enabled.
Command is abortable in the cases when the network is interrogated. The interaction of this command with
other commands based on other GSM supplementary services is described in the GSM standard.
Defined values
<n> (sets/shows the result code presentation status in the ISU):
0 disable unsolicited result presentation
1 enable unsolicited result presentation
On a DTE-DCE command, <n> will set the result code presentation status in the ISU, regardless of the
value of any <mode> parameter.
As with other 9555/9522B unsolicited result codes, the code may be broadcast to multiple endpoints,
and may be sent to one endpoint even if <n> specifies suppression of the result.
<mode> (when <mode> parameter is not given, network is not interrogated):
0 disable Call Waiting service for specified class(es)
1 enable Call Waiting service for specified class(es)
2 query status of Call Waiting service for specified class(es)
<classx> is a sum of integers each representing a class of information:
1 voice
2 data
4 fax