"The Compass 597 USB Modem is TELUS' newest and smallest modem available and provides seamless access to our high-speed EvDO Rev A wireless network faster and easier than ever," said Stephen Ospalak, vice-president of mobile and Future Friendly Home devices at TELUS. "Sierra Wireless designed a great looking and useful tool for clients on-the-go, and with the inclusion of a microSD card slot for convenient file storage, they will enjoy the smoothest digital experience they can get on our EvDo Rev A network, Canada's largest high-speed network(x)."

"With its small size, appealing design, and user-friendly installation and activation features, the Compass 597 USB Modem has a lot to offer TELUS customers looking for a simple way to stay linked in to their business and personal networks," said Dan Schieler, senior vice president, Worldwide Sales, for Sierra Wireless. "Users can depend on the Compass 597 for reliable connections and quick transfer speeds so they can work efficiently without the need to hunt for hotspots."

    Sierra Wireless Compass 597 USB Modem

    -   TRU-Install software installation technology steps first-time users
        through quick installation of the drivers and full software client
        directly from the modem, with no CD required

    -   microSD card slot provides convenient storage and file transfer
        capabilities

    -   Convenient, flexible usage options, with an external antenna
        connector for users working in remote or network fringe areas, and a
        lanyard loop to allow the modem to be clipped to the inside of a bag

    -   Optimizes power management so less power is used when not required,
        to reduce host PC battery drain

The Sierra Wireless Compass 597 USB Modem is available from TELUS for as little as $99.99 on a three-year contract or $299.99 without a contract. For more information about TELUS products and services, please visit www.telusmobility.com.

For more information about the Sierra Wireless Compass 597 USB Modem please visit http://www.sierrawireless.com/product/compass_597.aspx. To contact the Sierra Wireless Sales Desk, call +1 (604) 232-1488 or e-mail sales@sierrawireless.com.

    (x) Not available in all areas

    Note to editors:
    ----------------

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

About TELUS

TELUS (TSX: T, T.A; NYSE: TU) is a leading national telecommunications company in Canada, with $9.2 billion of annual revenue and 11.2 million customer connections including 5.6 million wireless subscribers, 4.4 million wireline network access lines and 1.2 million Internet subscribers. TELUS provides a wide range of communications products and services including data, Internet protocol (IP), voice, entertainment and video. In support of our philosophy to give where we live, TELUS, our team members and alumni have contributed $113 million to charitable and not-for-profit organizations and volunteered more than 2.1 million hours of service to local communities since 2000. Eight TELUS Community Boards across Canada lead our local philanthropic initiatives. For more information about TELUS, please visit telus.com.

About Sierra Wireless

Sierra Wireless (NASDAQ: SWIR - TSX: SW) modems and software connect people and systems to mobile broadband networks around the world. The Company offers a diverse product portfolio addressing enterprise, consumer, original equipment manufacturer, specialized vertical industry, and machine-to-machine markets, and provides professional services to customers requiring expertise in wireless design, integration, and carrier certification. For more information about Sierra Wireless, visit www.sierrawireless.com.

"Compass" is a trademark of Sierra Wireless. Other product or service names mentioned herein may be the trademarks of their respective owners.

Sierra Wireless 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: Sharlene Myers, Sierra Wireless, Phone: (604) 232-1445, Email: smyers@sierrawireless.com; AJ Gratton, TELUS Media Relations, Phone: (416) 279-8522, Email: aj.gratton@telus.com

SOURCE Sierra Wireless, Inc.

IPsec VPN provides a standards-based security solution for connecting to and managing remote assets, enabling customers to guard against unauthorized access to data. It delivers transparent end-to-end security to all applications without the need for costly software upgrades, additional equipment, or dedicated lines to the remote assets. An IP security layer at the end point ensures that IPsec VPN can be leveraged by all applications and peripherals connected to the Serial, USB or Ethernet ports of the AirLink gateways.

"Ensuring the security of the data from enterprise assets located outside an organization's physical facilities is a significant challenge that concerns many of our customers," said Justin Schmid vice president of marketing and business development for the Sierra Wireless Mobile and M2M group. "The addition of IPsec VPN to ALEOS will provide additional assurance that their remote assets and sensitive data are protected against unauthorized access."

Leveraging the Power of ALEOS and AceWare(TM)

To expedite setup and configuration of IPsec VPN on AirLink devices, the enhancement has been deeply integrated with AceWare, the robust suite of tools and utilities for remote device configuration, management and control of AirLink products. The user-friendly interface ensures that administrators can quickly and easily configure their fleet of devices for enhanced data security. All changes can be made either locally (tethered to the device), or remotely from a central location.

Customers with currently deployed compatible AirLink devices (Raven X, PinPoint X and Raven XT) can download the newest version of ALEOS with IPsec from the Sierra Wireless website at http://www.sierrawireless.com/product/airlink/aleos.aspx. AirLink devices with IPsec VPN pre-installed are expected to be available late in the second quarter of this year.

    Key Features of ALEOS with IPSec VPN

    -   Standards-based IPsec is compatible with a wide range of applications

    -   Provides enhanced data security for all applications connected
        through a compatible Airlink gateway

    -   No additional installation required

    -   Simple wizard-based setup

    -   Remote management, control and configuration via AceWare tools and
        utilities

    -   Secure two-way communication channel with data encryption

    -   Can be downloaded, configured and installed over-the-air for
        currently deployed AirLink Raven X, PinPoint X and Raven XT devices

For more information about the Sierra Wireless AirLink product line and ALEOS, please visit http://www.sierrawireless.com/product/mobile.aspx. To contact the Sierra Wireless Sales Desk, call +1 (604) 232-1488 or e-mail sales@sierrawireless.com.

Note to editors:

----------------

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

About Sierra Wireless

Sierra Wireless (NASDAQ: SWIR - TSX: SW) modems and software connect people and systems to mobile broadband networks around the world. The Company offers a diverse product portfolio addressing enterprise, consumer, original equipment manufacturer, specialized vertical industry, and machine-to-machine markets, and provides professional services to customers requiring expertise in wireless design, integration, and carrier certification. For more information about Sierra Wireless, visit www.sierrawireless.com.

"AirLink", "ALEOS" and "AceWare" are trademarks 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: Sharlene Myers, Sierra Wireless, Phone: (604) 232-1445, Email: smyers@sierrawireless.com

SOURCE Sierra Wireless, Inc.

Sierra Wireless (NASDAQ: SWIR - TSX: SW) today announced two new additions to the company's embedded module product line - the MC8790 and MC8790V embedded modules for HSPA networks. The Sierra Wireless MC8790 and MC8790V HSPA modules will offer a more cost-effective solution for OEM customers, while still providing the extensive feature set and high-end functionality that Sierra Wireless customers have come to expect from the company's embedded modules.

The MC8790 is designed for OEMs integrating mobile broadband capabilities into notebook computers, fixed wireless terminals, or portable handheld devices for vertical markets. Tri-band HSPA support and receive diversity on all bands make the module globally compatible, enabling OEMs to concentrate development efforts on a single product for use in all global markets. The MC8790V adds voice calling capabilities, providing an option for OEMs that require simultaneous voice and data usage in their devices.

"OEM customers integrating mobile broadband connectivity into their devices need to be confident that the investment they make in integration and development is worthwhile," said Trent Punnett, senior vice president, Marketing and Corporate Development, for Sierra Wireless. "We understand their concerns, and with the introduction of the MC8790 and the MC8790V, we have focused efforts on bringing costs down, while continuing to provide the support OEM customers need to get wireless technology integrated into their devices and out to market as quickly as possible. We believe that this balance of cost, quality, and support is the best solution for our OEM customers."

Samples of the MC8790 are available for OEM customers for integration and testing. Shipments are expected to begin late in the second quarter. Samples of the MC8790V are expected to be available in the fourth quarter of this year.

    <<
    Sierra Wireless MC8790 and MC8790V

    -   Peak data speeds of up to 7.2 Mbps (megabits per second) on the
        downlink and 2.0 Mbps on the uplink (future upgradeable to 5.76 Mbps)

    -   Tri-band HSPA/UMTS and quad-band support for EDGE/GPRS/GSM network
        access for roaming on high-speed networks worldwide

    -   GPS-capable to support location-based services

    -   Voice capabilities, making it ideal for fixed wireless terminals and
        portable handheld devices that require the ability to make voice
        calls (MC8790V only)

    -   Support for simultaneous voice and data usage (MC8790V only)
    >>

Sierra Wireless EMPOWERED(TM)

Sierra Wireless 3G embedded modules are powerful, cost effective solutions that easily integrate into laptops, portable devices and fixed wireless terminals, offering complete wireless data solutions over HSPA and EV-DO Rev A networks. Sierra Wireless EMPOWERED(TM) devices deliver the same reliable, high-quality mobile broadband connectivity customers have come to expect from Sierra Wireless, embedded and optimized within the host device to offer the best possible performance.

For more information about the Sierra Wireless MC8790 and MC8790V embedded modules, please visit http://www.sierrawireless.com/product/oemmodules.aspx. To contact the Sierra Wireless Sales Desk, call +1 (604) 232-1488 or e-mail sales@sierrawireless.com.

Note to editors:

----------------

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

About Sierra Wireless

Sierra Wireless (NASDAQ: SWIR - TSX: SW) modems and software connect people and systems to mobile broadband networks around the world. The Company offers a diverse product portfolio addressing enterprise, consumer, original equipment manufacturer, specialized vertical industry, and machine-to-machine markets, and provides professional services to customers requiring expertise in wireless design, integration, and carrier certification. For more information about Sierra Wireless, 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.

%SEDAR: 00011917E

SOURCE: Sierra Wireless, Inc.

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

"We were highly impressed with the scope and quality of the applications received to the program, and narrowing down this list was a difficult task," said Greg Speakman, vice president of Adapter Marketing and Product Management for Sierra Wireless. "We sincerely appreciate the efforts that went into all of the submitted applications, and we look forward to seeing the prototypes that come out of the next phase of the program."

Sierra Wireless and Wavefront are also pleased to announce that NAVTEQ, a world leader in premium-quality digital map data, is the official provider of mapping data for the developer program and will provide access to its sample map database and tools through its NAVTEQ Network for Developers(TM) (NN4D) program. NAVTEQ's involvement will help the selected applicants create cutting-edge and ready for deployment applications while participating in the program.

Selected applicants also receive access to an online library of world imagery furnished by DigitalGlobe's ImageBuilder API during the developmental stage.

"By supplying the imagery in support of this program, DigitalGlobe continues to build on its reputation as the go-to source for imagery in this rapidly growing industry," said Marc Tremblay, vice president and general manager of DigitalGlobe's commercial business unit. "We look forward to expanding our footprint in this market and facilitating solutions that make accessing imagery easier. At the same time, we are always proactively seeking partners who will help us bring imagery to the general consumer."

About the Sierra Wireless - Wavefront Developer Program

The Sierra Wireless - Wavefront Developer Program was established to find best-in-class enterprise or consumer applications that take advantage of the mobile broadband and GPS capabilities built into Sierra Wireless PC cards, ExpressCards, and USB modems. As part of the first phase, written applications were submitted by groups focusing in all sectors of the developer community, including those developing for Location Based Services (LBS), New Media and Social Networking. The second phase involves the participants creating working prototypes of their applications.

All shortlisted applicants will be provided with a Sierra Wireless mobile broadband adapter and a software development kit, as well as support from Sierra Wireless and Wavefront to assist in building their applications. The developers will also have access to Wavefront's rich mobile business industry knowledge as well as technical knowledge and test environment. Best-in-class winners will be selected in October and will be considered for promotional consideration and incorporation within Sierra Wireless products, which are distributed by mobile network operators worldwide.

About Wavefront

Wavefront is the commercialization centre supporting the growth of British Columbia's more than 1,000 wireless and new media developer companies. Wavefront accelerates the commercialization and delivery of mobile applications and devices by providing emerging companies with a suite of development, advisory and testing/accreditation services that facilitate commercial engagement with global mobile network operators and enterprise companies. For more information on Wavefront visit www.wavefrontac.com.

About Sierra Wireless

Sierra Wireless (NASDAQ: SWIR - TSX: SW) modems and software connect people and systems to mobile broadband networks around the world. The Company offers a diverse product portfolio addressing enterprise, consumer, original equipment manufacturer, specialized vertical industry, and machine-to-machine markets, and provides professional services to customers requiring expertise in wireless design, integration, and carrier certification. For more information about Sierra Wireless, visit www.sierrawireless.com.

About NAVTEQ Network for Developers

NAVTEQ Network for Developers (NN4D) is a dynamic online web portal that provides developers and business partners with the technical and business support needed to build, showcase and launch the most innovative location-enabled solutions. Connect with the people, tools and resources you need to grow your business by visiting www.NN4D.com.

About NAVTEQ

NAVTEQ is a leading provider of comprehensive digital map information for automotive navigation systems, mobile navigation devices, Internet-based mapping applications and government and business solutions. NAVTEQ creates the digital maps and map content that power navigation and location-based services solutions around the world. The Chicago-based company was founded in 1985 and has over 3,100 employees located in 167 offices in 31 countries.

About DigitalGlobe

Longmont, CO-based DigitalGlobe (www.digitalglobe.com) is a leading global content provider of high-resolution world imagery solutions. Sourced from our own advanced satellite constellation and aerial network, our imagery solutions deliver real world perspective to governments, businesses, technology developers and humanitarian associations worldwide. The company's imagery solutions consist of one of the world's largest image libraries, growing at a rate of up to 1 million square kilometers per day and distributed and accessed through online search and retrieval, production ready image layers, development tool-kits for internet enabled applications and devices, and software solutions for integration with GIS products and services. DigitalGlobe currently operates the highest-resolution commercial satellite constellation with QuickBird and the first of two next-generation satellites, WorldView-1. The company plans to launch its second next-generation satellite, WorldView-2 in mid-2009.

"AirCard" is a registered trademark of Sierra Wireless. Other product or service names mentioned herein may be the trademarks of their respective owners. Wavefront is a registered trademark of Wavefront Wireless Innovation Society of British Columbia. NAVTEQ and NAVTEQ Network for Developers are trademarks in the U.S. and other countries. (C) 2008 NAVTEQ. All rights reserved. DigitalGlobe is a registered trademark of DigitalGlobe.

%SEDAR: 00011917E

SOURCE: Sierra Wireless, Inc.

SOURCE: Wavefront

Sharlene Myers, Sierra Wireless, Phone: (604) 232-1445, E-mail:
smyers@sierrawireless.com; Patty Lee, Wavefront, Tel: (778) 989-4632, E-mail:
patty.lee@wavefrontac.com; Bob Richter, NAVTEQ, Tel: (212) 802-8588, E-mail:
bob@richtermedia.com; Chuck Herring, DigitalGlobe, Tel: (303) 684-4020, E-mail:
cherring@digitalglobe.com