Press Release

December 15, 2004

Indosat and Research In Motion Introduce BlackBerry in Indonesia for the First Time

The BlackBerry 7730 Wireless Handheld ™ connects business users to information and people while on the go

Jakarta, Indonesia and Waterloo, Canada - Indosat (JSX:ISAT; NYSE:IIT) and Research In Motion (Nasdaq: RIMM; TSX: RIM) today introduced the BlackBerry Enterprise Solution™   for the first time in Indonesia. The BlackBerry 7730 Wireless Handheld™ is available immediately. The Java™-based BlackBerry 7730™ features a large, bright, color screen, supports international roaming* on GSM/GPRS networks and delivers wireless access to corporate email, data, phone, SMS, Internet and organizer applications.

“We are delighted to cooperate with RIM to offer our customers the first BlackBerry handheld in Indonesia,” said Indosat Cellular Marketing Director, Hasnul Suhaimi. “Enterprises and government organizations in Indonesia are now able to join over two million subscribers worldwide who are already capitalizing on the BlackBerry platform to boost their efficiency.”

“BlackBerry is growing in popularity around the world because it delivers secure, always-on, push-based wireless email and data access for business users," said Patrick Spence, Vice President of Asia, Research In Motion. “We expect that customers in Indonesia will value the BlackBerry 7730 as an ideal productivity tool to manage all of their corporate data and communications from a single, integrated handheld.”

Introducing the BlackBerry 7730 Wireless Handheld:

•  A large high-resolution color screen that supports over 65,000 colors while maintaining superior battery life.
• Cradle-free wireless email synchronization.
• Integrated email attachment viewing that enables users to read important email attachments from their BlackBerry handheld (including: Microsoft® Word, Excel, PowerPoint, PDF, WordPerfect, ASCII).
• Support for international roaming (on 900/1800/1900 MHz GSM/GPRS networks) that enable mobile professionals to use one handheld while traveling with no need to change their phone number or email addresses.
• A push-based wireless architecture that delivers messages automatically.
• A wireless extension to existing email accounts including Microsoft® Exchange or IBM Lotus® Domino™ email accounts.
• An easy-to-use 'thumb-typing' keyboard for typing email and SMS messages on the go.
• Backlit screen and keyboard for easy reading and typing during day or night.
• 16 MB flash memory plus 2 MB SRAM, rechargeable/removable lithium battery and Universal Serial Bus (USB) connectivity for quick battery charging.
• A pocket-sized, lightweight and ergonomic handheld design, with an embedded RIM wireless modem and internal high performance antenna.

For corporate customers, BlackBerry Enterprise Server™ software tightly integrates with Microsoft® Exchange or IBM Lotus® Domino™ to enable secure, push-based, wireless access to corporate email, data and PIM (personal information management) features.

For further enquiry, please contact blackberry@indosat.com or +62 816 10 5678 or visit www.matrix-centro.com

About Indosat

Indosat is a leading telecommunication and information provider in Indonesia providing: cellular, fixed telecommunication (including fixed wireless access services) and multimedia, data communication & internet (MIDI). After merging with its 2 subsidiaries, Indosat is well-positioned to be the telecommunication service provider with the comprehensive range of products offering in Indonesia.

Indosat is the second largest cellular operator in Indonesia and the primary provider of international telecommunications services. In 2004 Indosat plans to launch its domestic long distance (DLD) services.

For further information, please visit Indosat website www.indosat.com.

About Research In Motion

Research In Motion is a leading designer, manufacturer and marketer of innovative wireless solutions for the worldwide mobile communications market. Through the development of integrated hardware, software and services that support multiple wireless network standards, Research In Motion provides platforms and solutions for seamless access to time-sensitive information including email, phone, SMS messaging, Internet and intranet-based applications. Research In Motion technology also enables a broad array of third party developers and manufacturers to enhance their products and services with wireless connectivity to data. Research In Motion's portfolio of award-winning products, services and embedded technologies are used by thousands of organizations around the world and include the BlackBerry® wireless platform, the Research In Motion Wireless Handheld™ product line, software development tools, radio-modems and software/hardware licensing agreements. Founded in 1984 and based in Waterloo, Ontario, Research In Motion operates offices in North America, Europe and Asia Pacific. Research In Motion is listed on the Nasdaq Stock Market (Nasdaq: RIMM) and the Toronto Stock Exchange (TSX: RIM). For more information, visit www.rim.com or www.blackberry.com.

*Check with Indosat for GSM/GPRS roaming arrangements.

Forward-looking statements in this news release are made pursuant to the "safe harbor" provisions of the United States Private Securities Litigation Reform Act of 1995. When used herein, words such as "intend" and similar expressions are intended to identify forward-looking statements. Forward-looking statements are based on assumptions made by and information available to Research In Motion Limited. Investors are cautioned that such forward-looking statements involve risks and uncertainties. Important factors that could cause actual results to differ materially from those expressed or implied by such forward looking statements include, without limitation, possible product defects and product liability, risks related to international sales and potential foreign currency exchange fluctuations, the initiation or outcome of litigation, acts or potential acts of terrorism, international conflicts, significant fluctuations of quarterly operating results, changes in Canadian and foreign laws and regulations, continued acceptance of RIM's products, increased levels of competition, technological changes and the successful development of new products, dependence on third-party networks to provide services, dependence on intellectual property rights and other risks and factors detailed from time to time in RIM's periodic reports filed with the United States Securities and Exchange Commission, and other regulatory authorities. The Company has no intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

The BlackBerry and RIM families of related marks, images and symbols are the exclusive properties and trademarks of Research In Motion Limited. RIM, Research In Motion and BlackBerry are registered with the U.S. Patent and Trademark Office and may be pending or registered in other countries. All other brands, product names, company names, trademarks and service marks are the properties of their respective owners.