Press Release

PHONE.COM DELIVERS UP.LINK SERVER RELEASE 4; PROVIDES LEADING EDGE, ROBUST WAP SOLUTION FOR WIRELESS NETWORK OPERATORS

Scalable, International, and Interoperable - UP.Link Server R4 Supports Widest Selection of Handsets in the Industry

Redwood City, Calif. (October 6, 1999) ¾ Phone.com Inc. (NASDAQ: PHCM) today announced the delivery of Release 4 of the UP.Link™ Server to a number of network operators, providing a robust, Wireless Application Protocol (WAP) V1.1-compliant solution to wireless network operators. The R4 UP.Link Server, the latest in a series of platform advancements from Phone.com, will allow wireless network operators to deliver Internet and intranet service and applications to screens of wireless phones equipped with a compatible microbrowser such as the Phone.com™ UP.Browser™ microbrowser. With over 25 handset manufacturers licensing the UP.Browser microbrowser from Phone.com, as well as interoperability agreements with Nokia and Ericsson, the R4 UP.Link Server supports the widest selection of handsets in the industry.

The debut of the R4 UP.Link Server sets another milestone for Phone.com in its role as a co-founder of the WAP Forum. Building on the commercial success of the R3 UP.Link Server, which was the first commercial server to deliver WML 1.1 content to browser-enabled handsets, R4 UP.Link Server adds support for WAP 1.1 compliant handsets.

R4 UP.Link Server can deliver WML 1.1 content to any WAP 1.1-compliant handset, as well as existing UP.Browser-enabled handsets. Phone.com's promise of backward compatibility means that R4 UP.Link Server can also deliver existing HDML content to these handsets, giving network operators the ability to support the broadest selection of wireless Internet applications available. Based on Phone.com's commitment to WAP interoperability, the R4 UP.Link Server has been extensively tested with Nokia's 7110 WAP-enabled handset.

"Phone.com is helping lead the wireless revolution with products such as Release 4 of the UP.Link Server, yet another example of our commitment to provide a proven, reliable and scalable solution to network operators," said Ben Linder, vice president of marketing at Phone.com. "Aggressive installation of R4 UP. Link Server in Australia, Asia, Europe and the U.S., in addition to an impressive list of UP. Browser microbrowser licensees, clearly illustrates the demand for wireless Internet access technology."

"In our extensive use of the UP.Link Server Suite over the past three years, we have always found the UP.Link to be an indispensable part of our wireless Internet solution," said Kendra VanderMeulen, Senior Vice-President, AT&T Wireless Services. "The V4 UP.Link Server provides us a reliable solution which will extend the array of services we can offer our customers."

Additional features of R4 UP.Link Server include support for a Local Application Environment in handsets, allowing subscribers to use their applications even when out of coverage. R4 UP.Link Server also includes the Web Message Service (WMS), providing support for delivering simple Web content to SMS handsets, allowing network operators to immediately offer Internet services to their entire subscriber base.

Trials of the R4 UP.Link Server are already under way at over ten different network operators, utilizing these advanced features:

Web Message Service (WMS): Provides a simple way to offer Internet content to subscribers who are using legacy two-way SMS handsets. Subscribers issue simple SMS requests such as "NEWS" to view headline news and "QUOTE PHCM" to request a stock quote for Phone.com. WMS allows SMS-only subscribers to sample Internet content services, generating interest in full WAP solutions and handsets.

Dynamic Scalable Server Architecture (DSSA): Based on Phone.com's years of deployment experience, the DSSA design has evolved to meet the demanding requirements of wireless network operators for reliability, performance and scalability. To support a growing subscriber base, DSSA enables network operators to add CPU's to their existing servers or add more servers, increasing the processing power of the UP.Link Server.

Security and Authentication: Addressing the stringent security requirements of banks and brokerage firms, UP.Link WAP Gateway provides a network-independent, end-to-end security model that employs the WAP WTLS standard over the wireless network and uses Internet standard SSL/TLS for communication with a Web server.

Locale Support Services: Using the Unicode standard, Locale Support Services provides support for multibyte character sets and offers character transcoding, enabling Web site content to be properly mapped to the character set in the handset. Using these built-in features, the UP.Link WAP Gateway has already been successfully localized in countries around the world including France, Italy, Japan and Korea.

System Administration: The UP.Link WAP Gateway provides transaction logging of all subscriber activity so that network operators can track system usage and prepare billing information. All provisioning, system administration, and system monitoring tools are also provided by the UP.Link Administration package.

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 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.com's limited operating history, potential fluctuations in Phone.com's operating results, uncertainties related to the Phone.com's long sales cycle and reliance on a small number of customers, Phone.com's dependence on the acceptance of its products by network operators and wireless subscribers, Phone.com's 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.com's 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.com's form 10-K dated September 1999 and in its other filings with the Securities and Exchange Commission.

The Phone.com name and logo and the family of terms carrying the "UP." prefix are trademarks of Phone.com, Inc. All Rights Reserved. All other brands and product names may be trademarks of the respective companies with which they are associated.

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