Specifications
Iridium Proprietary
ISU AT Command Reference Revision History
Iridium Proprietary Version 2.45
20 June 2011 ii
Revision History
Version Date Author Reason
1.0 06-Jul-99 Motorola author Initial creation.
1.1 22-Oct-99 Motorola author Fixed default/range values for +IPR, +WIRLP and
+DS commands.
1.2 9-Dec-99 Motorola author Added more GSM 7.07 and GSM 7.05 commands
to support Starfish TrueSync application. Added
result codes summary table (section 9).
1.3 26-Jan-00 Motorola author Added +G commands (section 6). Added Motorola
satellite product proprietary commands (section 9)
and Phase 2 +C commands.
1.4 21-Feb-02 Motorola author Edited document to align with software releases
INC0620, RAC0620, LAC109G, and planned
future releases.
1.5 28-Mar-02 Motorola author Refined edits after document inspection.
1.6 15-May-02 Motorola author Updated S-Register Definitions in section 8, added
+CCLK command, clarified +COPS, change “ME”
to “ISU”.
1.7 11-Jun-02 Motorola author Added definitions for RI and RTS terms. Updated
Sections 2 and 3 to aid user in command entry and
3-wire connection. Specified SAC0201 label for
9522 initial commercial release. Revised Phase III
defaults for AT&Kn and AT&Dn. Clarified Phase
III ATH implementation for voice call.
Consolidated S-register items in Section 8.
1.8 1-Jul-02 Motorola author Incorporated feedback from ISLLC’s review of
version 1.7.
1.9 10-Oct-02 Motorola author Added/updated AT commands for release
LAC0206 and SAC0206
1.10 18-Nov-02 Motorola author Updated DAV description and added missing
extended command for DAV registration.
2.0 20-May-03 Steve Engelschall Edited document to align with new software
releases LAC03xx and SAC03xx. Eliminated
references to software versions that were never
released commercially by Iridium. Reinserted
missing commands AT+CLCK and AT+CPWD.
Added new ‘Phase 4’ AT Commands, including
Short Burst Data commands.
2.1 8-April-05 Steve Engelschall Edited document to include 9505A (“Monaco”) and
9522A (“Daytona”) in the compatibility matrices.
Added section for “Phase V” commands.
2.2 6-Feb-06 Colin Clark Added Phase VI commands for SBD ring alert.
Added hardware failure result code.