Korean Telecommunications Company Will Introduce WAP-based Services for its Mobile Customers

REDWOOD CITY, Calif. August 31,1999 � Phone.com, Inc. (Nasdaq:PHCM), and Shinsegi Telecom today announced that Shinsegi Telecom has licensed the Phone.com� Wireless Application Protocol (WAP)-compatible UP.Link� Gateway and Enhanced Services Platform. Under the terms of the agreement, Shinsegi Telecom will use its Phone.com software license to provide new wireless Internet service offerings to its Korean mobile customers.

Phone.com's software will enable Shinsegi Telecom to offer mobile customers with WAP-capable CDMA phones access to a full range of Internet-based content and information services. These information services can be accessed through mobile phones equipped with a WAP-compatible microbrowser such as the Phone.com� UP.Browser� microbrowser.

�Shinsegi Telecom chose Phone.com�s UP.Link gateway technology because of Phone.com�s industry leadership, dominant share of the microbrowser market, Korean localized product, and ability to deliver and launch today.� Said Mr. Hee Moon, chief of technology and planing for Shinsegi Telecom. �With Phone.com�s UP.Link gateway we will rapidly bring wireless Internet to our growing base of over three million subscribers.�

Shinsegi Telecom Selects Phone.com WAP Platform for Korean Market

�Our agreement with Shinsegi Telecom demonstrates that Phone.com continues to deliver on its strategy to expand the international footprint and provide world class telecommunications providers the fastest time to market for scalable and reliable WAP services.� said Tony Miranzadeh, vice president of sales for Asia Pacific and Latin America for Phone.com. �Shinsegi�s fast growth combined with Phone.com�s innovative and mature products will bring the Korean public state-of-the-art capabilities on their CDMA phones.�

About Shinsegi Telecom

Shinsegi Telecom is a leading provider of wireless CDMA communication services to an active base of more than 3M subscribers in Korea. Shinsegi won the second digital cellular operator licence in early 1994 and launched its service in April 1996, using CDMA technology. The company started as a consortium of 245 shareholders, including three foreign companies - AirTouch (10.7%), Southwestern Bell (8.25%) and Qualcomm (2.46%).

About Phone.com

Phone.com, Inc. is a leading provider of software that enables the delivery of Internet-based 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 the company�s operating results, uncertainties related to the company�s long sales cycle and reliance on a small number of customers, the company�s dependence on the acceptance of its products by network operators and wireless subscribers, the company�s ability to adequately address the rapidly-evolving market for delivery of Internet-based services Shinsegi Telecom Selects Phone.com WAP Platform for Korean Market

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 prospectus dated June 10, 1999 and in its other filings with the Securities and Exchange Commission.

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