About This Guide; Introduction; Access - Sierra Wireless MC8775 Reference Manual

1: About This Guide

•

Introduction

• Result codes
• References
• Current firmware
versions
• Document structure
• Conventions
Note: If a command is only
partially protected (for example,
the assignment form is
restricted, but the query form is
not), the non-protected form of
the command also appears in
the 'Supported' reference.
Rev 2.9 Oct.08
Introduction
This document describes proprietary, password‐protected AT
commands available for the MC87xx embedded modem. These
commands are supplemental to the standard AT commands
for GSM devices defined by the 3GPP (The 3rd Generation
Partnership Project) and are intended for use by OEMs. The
standard commands are described in two documents available
from the 3GPP web site, www.3gpp.org:
• TS 27.007 AT command set for User Equipment (UE)
• TS 27.005 Use of Data Terminal Equipment ‐‐ Data Circuit
terminating Equipment (DTE‐DCE) interface for Short Message
Service (SMS) and Cell Broadcast Service (BSE)
The Sierra Wireless document UMTS Modems ‐ Supported AT
Command Reference (document number 2130617) identifies
supported standard AT commands and provides details where
commands vary from the standards. It also describes propri‐
etary commands that are not password‐protected.
The AT commands in this document are specific to the Sierra
Wireless MC8775 / 7 5V, MC8780 / 8 1, MC8785V, MC8790 / 9 0V,
MC8791V, and MC8792V embedded modems.
Note: When designing applications that use these AT commands, use
®
Watcher (and other Sierra Wireless applications) as functionality
templates to ensure proper use of command groups. For questions or
concerns relating to command implementation, please contact your
Sierra Wireless account representative.

Access

The commands in this reference are protected by passwords.
To use these commands, you must enter the correct password
AT!ENTERCND
using (see page 27). Once the password is
entered, all commands are available and remain available until
the modem is reset or powered off and on.
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