Specifications

About This Guide
Rev. 8 May.12 Proprietary and Confidential 15
Escape sequence guard time
The AT escape sequence “+++” requires a guard time of 1.0 seconds before and
after it is used.
Result codes
Result codes are not shown in the command tables unless special conditions
apply. Generally the result code OK is returned when the command has been
executed. ERROR may be returned if parameters are out of range, and is
returned if the command is not recognized or is not permitted in the current state
or condition of the modem.
References
This guide covers the command sets used by OEMs, designers and testers of
Sierra Wireless AirPrime MC/SL-series intelligent embedded modules. It does
not deal with operational use commands. For normal operations of the modem,
consult the UMTS Modems Supported AT Command Reference (document
number 2130617).
You may also want to consult the other documents available on our website at
www.sierrawireless.com.
Terminology and acronyms
This document makes wide use of acronyms that are in common use in data
communications and cellular technology.
Current firmware versions
Version
To determine your firmware revision:
• Enter the identification command
AT+GMR
The modem responds with version information for software, firmware, and
hardware.
The details following the revision number include Sierra Wireless information
on the specific build followed by the date and time of the build.
+GMR: … F/W VER: R1_0_0_…
Upgrading
If your modem firmware is an earlier version, you can acquire updated firmware
by contacting your account manager.