This application note presents the recovery mechanism of the Open AT Application Framework. The goal of the mechanism is to avoid infinite and uncontrolled reset loops in the firmware.

This FTP over SSL (FTPS) application note shows how to interact with an FTPS server through GPRS to perform an FTP PUT and FTP READ action.

This application note explains how to set up an SSL-secured communications channel with an Apache server.

The Open AT Source code example allows to use the file system to store application data using AT commands.

Devices on the management server can be viewed and managed through the web interface. This application note explains how to view details, and how to manage the units and jobs assigned to them including firmware and software upgrades. It also describes module firmware behavior and specific points around the implementation in the unit and server, plus limitations of both with good practice recommendations.

This application note describes how to use SMTP over a secured socket to send an e-mail. The application uses the GPRS interface for the SMTP transfer.

This application note describes the process and steps required to register and add units to the APMS server to make them available for use by a customer. This application note walks a user through the initial steps to getting up and running. If problems are encountered beyond this, support should be sought from your usual support channel.

Application Description This application is intended to show an AirLink FX programmable modem, in conjunction with the Ethernet X-card, to operate as an internet gateway allowing a PC to be plugged into it through its Ethernet port and then surf the internet. The Open AT code includes: - A DHCP server to automatically allocate IP address to the computers connected on the LAN. - A web server that prompts an HTTP page to configure the APN and related username and password.

This Application Note describes the general structure of the Real Time Operating System implemented in Sierra Wireless modules, the RTOS features extended to developers and their restrictions, limitations and best practices to be followed when using the RTOS features.

AT Command Parser source code demonstrates and provides re-usable code showing how to subscribe and parser responses to both unsolicted and sent AT commands.

Simple Open AT sample code giving an example of managing a TCP Client socket.

This application note provides an introduction to MMS to educate the reader on the system architecture, and then explains how to use it on Sierra Wireless products.

This document gives an overview on using a private DNS server to resolve domain name on an AirPrime module.

This application note describes the three types of bus services - SPI, I2C, and parallel bus - used to communicate between two or more connected devices.

This application note gives an overview of the CMUX feature for multiplexing data over serial link, and describes the Sierra Wireless implementation of CMUX. The CMUX feature allows multiple virtual ports to be created on a physical serial link (3GPP TS 27.010).

There are currently multiple tools available to log the AirPrime Q26 Series, WMP Series and SL6087 to both debug Open AT applications and provide information to Sierra Wireless technical support for in depth analysis of problems. This document outlines the tools available, how they should be used to provide information to Sierra Wireless and developers and also suggests filters to be using in common scenario's

This application note describes the hands-free solution available on AirPrime Q268x and WMP Series. It includes a brief explanation of the solution, overview and block schematics, parameters explanation, tuning guidelines and default parameters.

This application note describes the availability to send AT commands using the AirPrime Management Services portal.

This application note explains the Sierra Wireless implementation for PLMN selection and reselection. It also includes a PLMN reselection FAQ.

The Sierra Wireless C-GPS Plug-In (now replaced by the Location Library) facilitates the integration of GPS functionalities. The library drives a companion GPS chipset; here, the Opus III from eRide, Inc.