EDGE network launches in China with the Sierra Wireless AirCard® 775

Quad-band card now available from Guangdong Iscreate; connects mobile users to Guangdong Mobile Communications Corporation EDGE network
Vancouver, B.C.-May 11, 2005
Sierra Wireless (NASDAQ: SWIR - TSX: SW) and Guangdong Iscreate Technology Co. Ltd. today announced that the Sierra Wireless AirCard® 775 wireless wide area network card is now available from Guangdong Mobile Communications Corporation (GMCC) for use on the company's newly launched EDGE network in Guangdong province, servicing more than 18 million customers in cities throughout the Guangdong province. Guangdong Mobile has also offered the Sierra Wireless AirCard 750 card for use on GSM/GPRS networks since 2002.

"With high-quality, reliable wireless products such as the AirCard 750 and the AirCard 775, Sierra Wireless has established itself as a wireless industry leader," said Xue Wei Rao, President for Guangdong Iscreate. "We are happy to continue to work together and to offer the company's newest wireless PC card to the Chinese market."

"We are pleased to extend our relationship with Guangdong Iscreate and Guangdong Mobile Communications and deliver the AirCard 775 to the Chinese market," said Jin Pak, Vice President of Sales, Asia Pacific, for Sierra Wireless. "Guangdong Mobile's new EDGE network and the AirCard 775 will enable mobile professionals to remain productive and competitive, even while they are away from the office or traveling internationally."

With quad-band (850/900/1800/1900 MHz) operation on EDGE and GSM/GPRS networks, the AirCard 775 offers worldwide roaming. Designed for mobile professionals who are heavy data users, the AirCard 775 allows for wireless access to the Internet and corporate networks at speeds up to three times faster than on GPRS networks, with average data rates between 100 and 130 kbps (kilobits per second) and bursts up to 200 kbps on an EDGE network. The Sierra Wireless AirCard 775 provides simultaneous support for voice and SMS messaging to ensure users are always available to receive information.

To purchase the AirCard 775 PC card from Guangdong Iscreate Technology phone +86 20 8557 7829 ext 114, 208, or 209, www.iscreatech.com.

Customers can purchase the AirCard 775 from Guangdong Mobile for RMB2701 to RMB3601; for more information call T: +86-20-1860.

For more information about the Sierra Wireless AirCard 775, please visit www.sierrawireless.com/product/AC775.aspx, or contact the Sierra Wireless Sales Desk by calling 604-232-1488 or e-mailing [email protected].

Note to editors:
To view and download images of Sierra Wireless products, please visit www.sierrawireless.com/product/photos.aspx.

About Guangdong Iscreate Technology Co. Ltd.
Guangdong Iscreate Technology Co. Ltd is the whole-fund subsidiary of Guangdong Iscreate Communication Co. Ltd. It bases itself upon high technology, and its main business includes communication products' exploitation, sale and service. Established in February 2000, Guangdong Iscreate Communication Co. Ltd, a high-tech company, is involved in communication network construction and related services. Its business regions cover the whole province of Gunagdong and some parts of Gunagxi province. Shortly after the founding, Iscreate has gained trust and confidence from the customers. It is also accepted as the plenipotentiary member of both CWTS and IPSG. In its eyes, contribution to industrial development is inseparable from the company's development.

About Guangdong Mobile Communications Corporation
GMCC is the largest subsidiary of China Mobile Communication Corporation, of which the holding company, China Telecom was listed on the Hong Kong Stock Exchange in 1997. It has the biggest regional mobile network, and its network scale and communication capacity become the leader of the Industry in China. In addition, GMCC has been one of the Top-Ten Mobile Network's Carriers in the world. Until now, its subscribers' quantity in Guangzhou and Shenzhen has exceeded 4 million and 3 million respectively, becoming leaders among the big cities in China. Currently, GMCC's mobile network covers all the cities in Guangdong province, and it provides roaming service in more than 50 countries around the world.

About Sierra Wireless
Sierra Wireless is a leader in delivering highly differentiated wireless solutions that enable our customers to improve their productivity and lifestyle. Sierra Wireless develops and markets the AirCard, the industry-leading wireless PC card line for portable computers; embedded modules for OEM wireless applications; the MP line of rugged vehicle-mounted connectivity solutions; and Voq Professional Phone, a line of mobile phones with easy-to-use, secure software solutions for mobile professionals. For more information about Sierra Wireless please visit www.sierrawireless.com.

"AirCard" is a registered trademark of Sierra Wireless. "Voq Professional Phone" is a trademark of Sierra Wireless, Inc. 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.

For Further Information Contact:

Kathleen Gallagher
Sierra Wireless
Phone: 604-233-6309
Email: [email protected]
Website: www.sierrawireless.com