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Preview Center Designed to Foster Rapid Adoption and Deployment of the WAP 1.2 Standard

CANNES, France (February 1, 2000) - Phone.com, Inc. (Nasdaq:PHCM), a leading provider of WAP-based mobile Internet software and services, today announced that it will introduce a demonstration and compliance testing center to support Version 1.2 of the Wireless Application Protocol (WAP). As part of Phone.coms Interoperability Testing Lab, the WAP 1.2 Preview Center will enable software developers and wireless operators to begin testing WAP 1.2 compliant applications and services prior to commercial deployment. The Center will also enable wireless handset manufacturers to test prototypes of their products with a "live" Phone.com UP.Link WAP Gateway.

Phone.com will invite wireless operators to visit the Preview Center during the summer of 2000, where they can observe tests and demonstrations of WAP 1.2 applications on working WAP 1.2 prototype handsets against a fully operational Phone.com WAP Gateway. Phone.com will also provide participating developers with an early access version of its WAP 1.2 Software Developer Kit (SDK), enabling WAP 1.2 software features and functions to be verified before WAP 1.2 handsets are commercially available. With this SDK, developers will be able to assess first hand how easy it is to add support for new WAP 1.2 features to their existing WAP 1.1 applications.

"The Preview Center will be the first stop for software developers, operators and handset manufacturers interested in deploying WAP 1.2 services," said Ben Linder, vice president of marketing for Phone.com. "By opening the Preview Center to all WAP Forum members and by providing early support for WAP 1.2, Phone.com is once again helping to push the industry forward to mass market adoption."

The Preview Center is the first announced program to offer software developers the ability to trial and test the new features of WAP 1.2, such as the WAP Push Access Protocol (PAP). Those who test through the WAP 1.2 Preview Center will benefit from Phone.coms years of experience with wireless Internet push protocols and applications. Developers will be able to test their applications use of PAP against a real WAP Gateway to verify that their applications can begin taking advantage of WAPs standard push delivery mechanism. This early availability of a WAP 1.2 test platform will benefit all industry participants by enabling rapid development of push-based applications, even before the first WAP 1.2 handsets have come to market.

A key element to the success of WAP is ensuring backward compatibility between applications, gateways, and handsets. At the WAP 1.2 Preview Center, developers can run existing WAP 1.1 applications against the WAP 1.2 Gateway to verify compatibility. Furthermore, handset manufacturers can test how well their WAP 1.1 handsets run WAP 1.2 applications via Phone.coms unique Content Translator feature.

With the WAP 1.2 Preview Center Phone.com will once again demonstrate its commitment to the WAP standard by fostering rapid development and deployment of robust, value-added services for wireless Internet operators and subscribers.

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, 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 is included in Phone.coms Form 10-K dated September 24, 1999 and in its other filings with the Securities and Exchange Commission.

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