User Manual

Iridium Communications, Inc. Information Contained in this Guide
Iridium 9523 Product Developers’ Guide is Subject to Change Without Notice
Revision 2.6
Iridium Communications, Inc. Distribution of Guide Restricted
Proprietary & Confidential Information Page 111 of 115 to Product Developers
Only
8.12 Coordination of +CLCC and +CPAS responses
In order to determine the call state of the Iridium 9523, the +CLCC and +CPAS commands may be used.
The following table demonstrates how the output of the two commands, as well as the Extended Ring
Message, can be combined to provide a more detailed definition of the call state than any one of the
results provides by itself.
Call State +CLCC Response +CPAS Response Extended Ring Message
Idle +CLCC: 006 +CPAS: 000 or 003 n/a
Handset dialing - Voice +CLCC: 002 +CPAS: 000 or 003 n/a
ATD dialing - Voice command aborts call command aborts call n/a
ATD dialing - Data command aborts call command aborts call n/a
Alerting after ATD dialing - Voice command aborts call command aborts call n/a
Alerting after ATD dialing - Data command aborts call command aborts call n/a
Ringing - Voice +CLCC: 004 +CPAS: 003 CRING: VOICE
Ringing - Data +CLCC: 004 +CPAS: 003 CRING: DATA
In call - Voice +CLCC: 000 +CPAS: 000 or 003 n/a
In call - Data +CLCC: 000 +CPAS: 004 n/a
On hold - Voice +CLCC: 001 +CPAS: 000 or 003 n/a
Call waiting - Voice 2 or more call states,
one of which is 004
e.g. +CLCC: 000,004
+CPAS: 000 or 003 n/a