Iridium Communications, Inc. Information Contained in this Guide
Iridium 9523 Product Developers’ Guide is Subject to Change Without Notice
Revision 2.6
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0 Equivalent to 0 bars displayed on the signal strength indicator
1 Equivalent to 1 bar displayed on the signal strength indicator
2 Equivalent to 2 bars displayed on the signal strength indicator
3 Equivalent to 3 bars displayed on the signal strength indicator
4 Equivalent to 4 bars displayed on the signal strength indicator
5 Equivalent to 5 bars displayed on the signal strength indicator
When enabled, the signal quality indicator is reported only when the signal strength changes.
<svcind>:
Control reporting of “service availability” indicator changes.
0 No “service availability” indicator reporting
1 Enable “service availability” indicator reporting using result code
+CIEV:1,<value>
where <value> is:
0 Network service currently unavailable
1 Network service is available
Network service availability is equivalent to a signal strength greater than 0. The service availability
indicator provides a way for the FA to wait until the Iridium 9523 can start an SBD session without
receiving continual notifications of changes in signal strength.
Read Command: +CIER?
Query the current indicator event reporting settings. The response is of the form:
+CIER:<mode>,<sigind>,<svcind>
Test Command: +CIER=?
List the supported settings. The response is of the form:
+CIER: (supported <mode>s),(supported <sigind>s),(supported <svcind>s)
Note: In <mode> 1, the FA may miss some indicator state changes if they occur while the data port is
reserved (not in command mode). However, the buffering mechanism ensures that the most recent
change for each indicator during reservation will be flushed to the FA on return to command mode; thus
the FA is always made aware of the latest state of each indicator.
5.7.95 +CRIS – Ring Indication Status
Exec Command: +CRIS
Query the ring indication status, returning the reason for the most recent assertion of the Ring Indicate
signal. The response contains separate indications for telephony and SBD ring indications.
The response is in the form:
+CRIS:<tri>,<sri>
where <tri> indicates the telephony ring indication status:
0 No telephony ring alert received
1 Incoming voice call
2 Incoming data call
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