debitel selects wireless network cards from Sierra Wireless for 3G HSDPA mobile data service in Germany

Surf@go Card 850, manufactured by Sierra Wireless, offers debitel customers the ability to work online wirelessly at broadband speed

August 3, 2006, Vancouver, Canada and Stuttgart, Germany – Sierra Wireless (NASDAQ: SWIR - TSX: SW) and debitel, the third largest mobile service provider in Germany with 8.9 million customers, today announced that debitel has selected Sierra Wireless HSDPA wireless wide area network cards to provide customers with high speed HSDPA network access in Germany. The debitel SURF@go Card 850, now available through debitel’s business sales channels and in debitel retail locations throughout Germany, is designed to provide wireless connectivity to e-mail, the Internet, and online corporate applications over 3G networks at data speeds comparable to wired broadband connections.

The debitel SURF@go Card 850 is a 3G wireless WAN Type II PC Card with a slim, unextended design, allowing users to conveniently store the card inside the laptop. Fully functional on HSDPA, UMTS, EDGE, and GPRS networks, the SURF@go Card utilizes the 2100 MHz UMTS frequency band common to European UMTS networks, offering average data rates of 500 to 800 kbps, with bursts over 1 Mbps on HSDPA networks. In areas where HSDPA or UMTS network coverage is not available, these cards will connect to EDGE and GSM/GPRS networks and enable international roaming on all four frequency bands (850, 900, 1800, and 1900 MHz) used worldwide.

“With the launch of HSDPA network service, our customers can now enjoy a wireless computing experience that is very similar to working on wired broadband, including the ability to access streaming audio and video and work within a VPN without sacrificing efficiency,” said Martin Witt, head of product management for debitel. “The wireless wide area network cards provided by Sierra Wireless are key to these benefits, and we believe the ease-of-use, performance, and reliability of these cards will help to increase the appeal of our service to customers.”

“We are pleased to cooperate with debitel to offer customers in Germany a wireless data product that demonstrates the speed and performance of HSDPA technology,” said Jim Lahey, Vice President, EMEA for Sierra Wireless. “With the ever-increasing pace of modern life, the ability to stay in contact and quickly access information from wherever it’s needed is a compelling benefit for mobile professionals.”

For more information about Sierra Wireless PC Cards, please visit http://www.sierrawireless.com/product/pccard.aspx. To contact the Sierra Wireless Sales Desk, please call +1 604-232-1488 or e-mailing sales@sierrawireless.com.

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About debitel AG
With almost eleven million customers in Europe, 8.9 million in Germany, debitel AG is one of the largest German providers of mobile telephony. As a network-independent service provider, debitel offers access to all four mobile networks, fast DSL access, individual tariffs for mobile and fixed-line telephony, and now mobile television. In the customer segments, debitel is orientated towards individual customer requirements, and is the network-independent German market leader with regard to the market share of customers. For more information, please visit www.debitel.ag/press.

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 PC cards, 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 (Sierra Wireless)
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.

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Sharlene Myers

Sierra Wireless

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