Sierra Wireless reaches two EV-DO Revision A product milestones

AirCard® 595 Sprint Mobile Broadband Card available from Sprint; MC5725 PCI Express Mini Card embedded module now Sprint certified

September 18, 2006 - Vancouver, British Columbia – Sierra Wireless (NASDAQ: SWIR - TSX: SW) today announced it has reached two milestones in the company’s EV-DO Revision A development program. The company has commenced commercial shipments of the Sierra Wireless AirCard® 595 Sprint Mobile Broadband Card for EV-DO Revision A networks to Sprint. In addition, the Sierra Wireless MC5725 PCI Express Mini Card embedded module has received standalone certification for use on the Sprint Power VisionSM Network. Commercial shipments to customers are scheduled to begin this month.

The AirCard 595 Sprint Mobile Broadband Card and the MC5725 embedded module are fully compatible with Sprint’s current Power Vision Network and will seamlessly migrate to Sprint’s upgraded EV-DO Revision A network when and where it will be available. Rev. A technology is estimated to improve average download speeds to 450-850 kbps and average upload speeds to 300-400 kbps, six times faster than currently available upload rates. Sprint has announced plans to begin its rollout of EV-DO Revision A during the fourth quarter of 2006, and expects the upgraded network to be available to more than 40 million people by year end.

“EV-DO Revision A is a significant step forward for mobile data, as the increased uplink speed reduces sending delays and brings the user experience closer to a wired broadband experience,” said Dan Schieler, Senior Vice President, Worldwide Sales for Sierra Wireless. “The AirCard 595 and the MC5725 take full advantage of these improvements, and we are pleased to support Sprint in its deployment of Revision A, to provide customers with future-ready solutions out of the box.”

The Sierra Wireless AirCard 595 will be sold through Sprint indirect and business sales channels and online at www.sprint.com for a suggested retail price of $249.99 and as low as $99.99 with a two-year subscriber agreement.

The AirCard 595 is a Type II PCMCIA card that offers peak theoretical data transfer speeds of 3.1 megabits per second (Mbps) on the downlink and 1.8 Mbps on the uplink when operating on an EV-DO Revision A wireless network. The fixed, robust antenna is designed for superior performance, delivering better coverage in fringe areas and improved notebook battery life.

The MC5725 PCI Express Mini Card embedded module offers uplink and downlink data rates similar to those of the AirCard 595, but is designed for integration into notebook PCs and other portable computing devices, to provide AirCard Enabled™ built-in wireless network access. Sierra Wireless has more than 12 years experience in delivering industry leading WWAN products. To simplify and expedite product development cycles, Sierra Wireless provides OEM customers with a comprehensive software development kit (SDK), as well as superior integration and certification support services.

For more information about the Sierra Wireless AirCard 595, please visit http://www.sierrawireless.com/product/ac595.aspx. For more information about the MC5725 PCI Express Mini Card embedded module, please visit http://www.sierrawireless.com/product/mc5725.aspx. To contact the Sierra Wireless Sales Desk, call 604-232-1488 or e-mail sales@sierrawireless.com.

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About Sierra Wireless
Sierra Wireless (NASDAQ: SWIR – TSX: SW) develops and markets reliable, high quality wireless communications products that provide mobile professionals with data and voice access to wide area wireless networks. The Sierra Wireless product portfolio includes the award-winning AirCard® line of wireless modems, embedded modules for original equipment manufacturers (OEMs), and the MP line of rugged, vehicle-mounted wireless modems. Sierra Wireless also offers professional services to OEM customers during product development, leveraging the company’s expertise in wireless design and integration to provide built-in wireless connectivity for notebook computers and other portable computing devices. Sierra Wireless is headquartered in Richmond, British Columbia, Canada, with additional offices in Carlsbad, California, London, and Hong Kong. For more information about Sierra Wireless, please visit www.sierrawireless.com.

“AirCard” is a registered trademark of Sierra Wireless. Other product or service names mentioned herein may be the trademarks of their respective owners.

Forward Looking Statements
This press release contains forward-looking statements that involve risks and uncertainties. These forward-looking statements relate to, among other things, plans and timing for the introduction or enhancement of our services and products, statements about future market conditions, supply conditions, channel and end customer demand conditions, revenues, gross margins, operating expenses, profits, and other expectations, intentions, and plans contained in this press release that are not historical fact. Our expectations regarding future revenues and earnings depend in part upon our ability to successfully develop, manufacture, and supply products that we do not produce today and that meet defined specifications. When used in this press release, the words “plan”, “expect”, “believe”, and similar expressions generally identify forward-looking statements. These statements reflect our current expectations. They are subject to a number of risks and uncertainties, including, but not limited to, changes in technology and changes in the wireless data communications market. In light of the many risks and uncertainties surrounding the wireless data communications market, you should understand that we cannot assure you that the forward-looking statements contained in this press release will be realized.

Contact Information

Sharlene Myers

Media Communications Specialist

Sierra Wireless

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