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Iridium Communications, Inc.
Iridium 9523 Product Developers' Guide
Revision 2.6
<mode> can take on the following values:
0
Disable data compression reporting (default)
1
Enable data compression reporting
If reporting is enabled, the following intermediate result codes are transmitted by the Iridium 9523:
+DR: NONE
+DR: V42B
+DR: V42B RD
+DR: V42B TD
Read Command: +DR?
Query the current reporting level setting. The response is in the form:
+DR: <mode>
Test Command: +DR=?
List the supported parameter settings. The response is in the form:
+DR: (supported <mode>s)
5.7.33 +CEER - Extended Error Report
Exec Command: +CEER
Execution command causes the phone to return information text <report> which offers the user an
extended report of the reason of the failure in the last unsuccessful call setup (originating or answering) or
the reason for last call release. The response is in the form:
+CEER: <report>
An example of a <report> is:
User alerting, no answer
5.7.34 +CHUP - Hangup call
This command causes the phone to hangup the current data or voice call. If hungup in this manner then
the incoming call will not be forwarded to voice-mail. To allow a rejected call to be forwarded to voice-
mail (if configured) use ATH0 instead.
5.7.35 +CMGD - Delete SMS Message
Exec Command: +CMGD=<index>
Execution command deletes message from preferred message storage <mem1> (<mem1> is the
selected message storage from the +CPMS command) location <index>. If deleting fails, final result code
+CMS ERROR: <cms_err> is returned.
An example of an error report is:
+CMS ERROR: <cms_err>
where <cms_err> can be one of the numbers below:
1
unassigned number
8
operator barred
Iridium Communications, Inc.
Proprietary & Confidential Information
Only
No data compression
Data compression in use in both directions
Data compression in use in receive direction only
Data compression in use in transmit direction only
Page 44 of 115
Information Contained in this Guide
is Subject to Change Without Notice
Distribution of Guide Restricted
to Product Developers
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