Openwave and Nokia Collaborate on Comprehensive MMS Interoperability Testing Program

Redwood City, Calif. and Espoo, Finland - April 16, 2002 -Openwave Systems Inc. (Nasdaq: OPWV), the worldwide leader of open IP-based communication infrastructure software and applications, and Nokia (NYSE: NOK), the world leader in mobile communications, today announced a comprehensive testing program to confirm interoperability between Openwave's MMS Client, MMS Server, and its WAP Gateway and Nokia's multimedia messaging (MMS) enabled handsets such as the Nokia 7650 imaging phone, and the Nokia MMS server solution.

Interoperability testing is designed to result in a seamless user experience independent of the network or the handset used, and enable operators to quickly provide compatible MMS services for their customers. The testing resulting in interoperability between the MMS offerings of both companies is anticipated before first full customer shipments.

"Openwave is committed to building products based on open standards and committed to cross vendor interoperability as a critical component for quick adoption," said Kevin Kennedy, Chief Operating Officer, Openwave. "Verified interoperability is the best way to truly provide communications service providers (CSPs) with a means to choose and deploy the best-of-breed client and server technologies. The global popularity of Nokia handsets makes this comprehensive testing program an important part of Openwave's work in this area."

"Nokia is firmly committed to completing interoperability testing with other key vendors in order to offer the best possible user experience for multimedia messaging," said Pertti Korhonen, Senior Vice President, Nokia Mobile Software. "Standards and interoperability are the key to creating the foundation of quality necessary for rapid adoption and increased use of advanced mobile messaging applications."
In addition to text messages, MMS can transmit messages containing graphics, photos, audio and even video clips between mobile devices, powered by the high-speed transmission technologies GPRS (General Packet Radio System) and UMTS (Universal Mobile Telecommunication System). MMS is an open standard approved by the Third Generation Partnership Project (3GPP) and WAP Forum, of which Openwave and Nokia are founding members.

About Openwave
Openwave Systems Inc. (Nasdaq: OPWV) is the worldwide leader of open IP-based communication infrastructure software and applications. Openwave is a global company headquartered in Redwood City, California. For more information, please visit www.openwave.com.

About Nokia
Nokia is the world leader in mobile communications. Backed by its experience, innovation, user-friendliness and secure solutions, the company has become the leading supplier of mobile phones and a leading supplier of mobile, fixed broadband and IP networks. By adding mobility to the Internet Nokia creates new opportunities for companies and further enriches the daily lives of people. Nokia is a broadly held company with listings on six major exchanges.

Cautionary Note Regarding Forward Looking Statements
This release contains forward-looking statements relating to expectations, plans or prospects for Openwave Systems Inc. that are based upon the current expectations and beliefs of Openwave's management and are subject to certain risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. In particular, the following factors, among others, could cause actual results to differ materially from those described in the forward-looking statements: (a) the ability to realize our strategic objectives by taking advantage of market opportunities in the Americas, Europe including the Middle East, and the Asia Pacific region; (b) the ability to make changes in business strategy, development plans and product offerings to respond to the needs of our current, new and potential customers, suppliers and strategic partners; (c) risks associated with the success of the GSM Association's Mobile Service Initiative; (d) risks associated with the development and licensing of software generally, including potential delays in software development and technical difficulties that may be encountered in the development or use of the Company's software; (e) the ability to manage the Company's growth; (f) the ability to continue to obtain qualified, experienced employees; (g) the ability to successfully partner with other companies; (h) the ability to acquire additional companies and technologies and integrate such acquisitions; (i) competition and technological changes and developments; (j) general risks of the Internet and wireless and wireline telecommunications sectors; and (k) the uncertain economic and political climate in the United States and throughout the rest of the world and the potential that such climate may deteriorate further.

For a detailed discussion of these and other cautionary statements, please refer to the risk factors discussed in filings with the U.S. Securities and Exchange Commission ("SEC"), including but not limited to the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2001 and the Company's quarterly reports on form 10Q for the quarters ended September 30, 2001 and December 31, 2001. All documents also are available through the SEC's Electronic Data Gathering Analysis and Retrieval system (EDGAR) at www.sec.gov or from Openwave's Web site at www.openwave.com. The Company assumes no obligation to update the forward-looking statements included in this document.


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Openwave, the Openwave logo and Services OS are trademarks and or registered trademarks of Openwave Systems Inc. All other trademarks are the properties of their respective owners.

For more information please contact:
Openwave Systems Inc.
Candace Locklear
Openwave
+1 650 480 4316
candace.locklear@openwave.com

Openwave (Europe) Limited
Chris Cartwright
Bite Communications Ltd.
+44 20 8600 6729
chrisc@bitecomm.co.uk

Nokia Mobile Phones
Communications
Tel. + 358 7180 08000
nokia.mobile.phones@nokia.com
www.nokia.com