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Press Releases

CTIA Wireless IT, San Francisco, California, Booth #839 - October 25, 2004 - Sierra Wireless (NASDAQ: SWIR - TSX: SW) and USA.NET today announced that the Voq Professional Phone™ is now available from USA.NET through an initiative to offer an end-to-end voice, data, and email solution to mobile professionals. The Voq Professional Phone, a Windows Mobile-based Smartphone designed for mobile professionals, is available from USA.NET for $299, when bundled with a voice and data service plan from AT&T Wireless and a hosted Microsoft Exchange 2003 or POP3 eMessaging service plan from USA.NET.

Developed by Sierra Wireless, the Voq Professional Phone offers the best features of a mobile phone, a messaging device, and a personal digital assistant (PDA). Combined with hosted eMessaging services from USA.NET, the Voq Professional Phone provides a robust mobile solution for small and medium-sized businesses, enabling mobile professionals to easily and cost-effectively access their email, calendar, and contact information while away from the office.

USA.NET provides a completely integrated outsourced messaging solution based on either Microsoft Exchange 2003 or POP3. The USA.NET end-to-end mobile solution enables road warriors to read, compose, forward, reply, file or delete mission critical messages and attachments from the Voq Professional Phone while maintaining a single email address and mailbox that stays fully and automatically synchronized at all times. An individual or organization utilizing USA.NET's hosted email service has flexible and reliable anywhere access to information on a secure, integrated basis and at an affordable price, without the need to maintain a costly in-house messaging infrastructure. All USA.NET email solutions include virus scanning, spam protection, 24x7 customer support and 99.9% guaranteed availability, as well as a suite of optional enhanced services.

"The Voq Professional Phone enables enterprises to easily extend their corporate email system to wireless users," said Dan Schieler, Vice President, North American Sales for Sierra Wireless. "Combining the Voq phone with USA.NET's world-class hosted eMessaging service is a logical extension of that, allowing mobile professionals in smaller enterprises to concentrate on their core business goals while leveraging the competitive advantages offered by a fully integrated and always synchronized mobile messaging solution."

"Our customers come to us for reliable end-to-end solutions that provide constant access to their email and critical business information on a fully synchronized basis, regardless of platform, or access method," said David Ramon, President and CEO of USA.NET. "The combination of our hosted eMessaging and the Voq Professional Phone offers them the increased productivity and competitive benefits needed in an enterprise environment without requiring extensive in-house IT support, making it a more viable option for small and medium-sized business."

The Voq Professional Phone is based on Microsoft Windows Mobile 2003 software and offers a rich telephony experience with the QWERTY thumbpad. The Voq Professional Phone provides:

• Phone-first capabilities with the power of a PDA and ability to synchronize contacts, calendars, and tasks to a Windows-based computer;
• The best features of a mobile phone, messaging device, and PDA in a single phone - resulting in lower cost, ease-of-use, and the need for fewer devices;
• Out-of-the-box personal and corporate e-mail solutions, including POP3, IMAP4, and Microsoft ActiveSync for wireless synchronization to Microsoft Exchange 2003;
• Powerful search, send and storage capabilities with myVoq, which also offers the ability to enhance business applications and mobile web services.

For more information about the Voq Professional Phone please visit www.voq.com. To purchase a Voq Professional Phone from USA.NET please visit www.usa.net, call 1-800-370-6188, or email USA.NET@wireless-data.com.

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, 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.

About USA.NET
USA.NET, the global eMessaging service provider™, is the largest exclusively-focused hosted eMessaging provider in North America, with over 5000 customers of all sizes and complexities. USA.NET is the only hosting provider who is SAS 70-Type II certified, Microsoft Gold Certified, and a member of the Microsoft Technology Adoption Program. USA.NET eMessaging solutions are modular and infinitely scalable to ensure customers can grow their business without having to invest additional resources, time or capital into their mission-critical messaging infrastructure. More information can be found at www.usa.net.

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.

Press Contact:

Robin Manherz
USA.NET
Phone: (303) 865-1288
Email: robin.manherz@corpx.usa.net
www.usa.net

Sharlene Myers
Sierra Wireless
Phone: (604) 232-1445
Email: smyers@sierrawireless.com
www.sierrawireless.com