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Siemens, Samsung and Sagem to Show GSM WAP Phones Using UP.Browser 4.1 at the GSM World Congress Conference

CANNES, France (February 1, 2000) - Phone.com, Inc. (Nasdaq:PHCM), a leading provider of WAP-based mobile Internet software and services, today announced version 4.1 of its UP.Browser microbrowser for wireless handsets based on the Wireless Application Protocol (WAP) 1.1. This week at the GSM World Congress conference in Cannes, France, the Phone.com UP.Browser 4.1 will be demonstrated on WAP-based phones from Siemens, Samsung and Sagem. Phone.coms UP.Browser has been licensed by more than 25 leading wireless handset manufacturers to enable users to wirelessly access Internet and intranet data through wireless carriers who have licensed the Phone.com UP.Link WAP gateway.

"For several months now, GSM operators have been anxious to deploy WAP services throughout their subscriber base, but the key inhibitor has been lack of phones. We are delighted that the phones we are demonstrating at GSM World Congress are expected to be available early this year," said Jeff Damir, vice president of business development for Phone.com. "We are especially pleased that Siemens, Samsung and Sagem are preparing to deliver high volume phone models that will enable operators to offer WAP services to a wide segment of users."

Phone.coms UP.Browser v4.1 was designed as a WAP 1.1 Class C device and includes all required layers of the WAP stack. For several months, Phone.com has been conducting bilateral interoperability testing using the WAP Forum defined test plan. In the coming weeks, Phone.com anticipates submitting the UP.Browser v4.1 in cooperation with our licensees to the WAP Forum certification authority for formal testing. Based on the current status, Phone.com is optimistic that UP.Browser v4.1 will receive WAP certification.

Additionally, Phone.com anticipates that the UP.Browser v4.1 will ship with 128-bit encryption for US and international markets, based on recent US government policy decisions and Phone.coms receipt of US export authorization.

"Siemens is committed to delivering a full product line of WAP handsets to our operator customers," said Georges Buolloy, vice president, Siemens. "In addition, through our work with Phone.com, we will deliver handsets that satisfy the requirements of wireless operators using Phone.com and other vendors WAP gateways."

"Samsung is able to deliver exciting new WAP wireless products, in large part, because of the close collaboration with Phone.com," said, S.K. Lee, senior vice president of research and development at Samsung.

Phone.com will include these phone models in an upcoming release of the Phone.com UP.SDK WAP Software Developer Kit. The UP.SDK can be used by developers to create and test their applications one a variety of WAP handsets.

About Siemens Information and Communication Products Group
The Information and Communications business segment is part of Siemens AG, a global powerhouse in electrical engineering and electronics with more than $ 75 billion in sales. Information and Communications consists of the three Groups: Information and Communication Networks (59,000 employees, $ 13 billion sales), Information and Communication Products (33,000 employees, $ 11 billion sales) and Siemens Business Services (21,000 employees, $ 4 billion sales).

Information and Communication Products is an integral part of Information and Communications. The product group is positioned in the strategic growth fields of information and communication technology and offers the entire product range of IT and communications from a single source: from PCs, notebooks, servers and mainframes all the way to digital products and corded, cordless and mobile phones. The Communication Devices division is the worlds leading provider of digital phones. The mobile phone business is about to largely expand its global market share. IT services complement the portfolio with an emphasis on Value Added Services. Further information on this Siemens Group can be found on the Internet at http://www.siemens.com/ic/products.

About Samsung
Samsung Electronics Co., Ltd., with 1998 sales revenue of US$16.6 billion, is a world leader in the electronics industry. The Korea-based firm has operations in 46 countries and employs 52,000 people worldwide. The company consists of three main business divisions: Multimedia & Home Appliances, Semiconductors and Information & Telecommunications. For more information, visit the website, http://www.samsungelectronics.com.

About Phone.com
Phone.com, Inc. (Nasdaq:PHCM) is a leading provider of software and services that enable the delivery of Internet-based information services to mass-market wireless telephones. Using its software, wireless subscribers have access to Internet- and corporate intranet-based services, including Email, news, stocks, weather, travel and sports. In addition, subscribers have access via their wireless telephones to network operators intranet-based telephony services, which may include over-the-air activation, call management, billing history information, pricing plan subscription and voice message management. Phone.com is headquartered in Silicon Valley, California and has regional offices in Belfast, Copenhagen, London and Tokyo. Visit http://www.phone.com for more information.

Except for the historical information contained herein, the matters discussed in this news release are forward-looking statements involving risks and uncertainties that could cause actual results to differ materially from those in such forward-looking statements. Potential risks and uncertainties include, but are not limited to, Phone.coms limited operating history, potential fluctuations in Phone.coms operating results, uncertainties related to Phone.coms long sales cycle and reliance on a small number of customers, Phone.coms dependence on the acceptance of its products by network operators and wireless subscribers, Phone.coms ability to adequately address the rapidly-evolving market for delivery of Internet-based services through wireless telephones, the need to achieve widespread integration of Phone.coms browser in wireless telephones, competition from companies with substantially greater financial, technical, marketing and distribution resources and the ability of Phone.com to manage a complex set of engineering, marketing and distribution relationships. Further information regarding these and other risks are included in Phone.coms Form 10-Q for quarter ended September 30, 1999, in its prospectus dated November 16, 1999 and in its other filings with the Securities and Exchange Commission.

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For further information:

Contact Phone.com Worldwide Public Relations:

Siemens AG
Sabine Seitz
Siemens Communication Devices
+ 49 89 722 45156
[email protected]