PHONE.COM TO ACQUIRE ONEBOX.COM

                 ONEBOX.COM'S INTERNET-BASED UNIFIED MESSAGING TO
              EXTEND AND ACCELERATE PHONE.COM'S OFFERINGS OF POWERFUL
                    INTERNET COMMUNICATIONS APPLICATIONS

REDWOOD CITY AND SAN MATEO, CALIF., (FEB 14, 2000) --
Phone.com, Inc. (Nasdaq: PHCM - news) a leading provider of mobile Internet
software and services, today announced it has signed a definitive agreement
to acquire Onebox.com, Inc. for approximately $850 million in Phone.com
common stock. Headquartered in San Mateo, California, Onebox.com is a
leading communications application service provider with 2.5 million
registered users worldwide utilizing unified email, voicemail, fax, and
wireless-enabled communication applications. Onebox.com's suite of
applications will be integrated with Phone.com's offerings and will be
delivered as outsourced solutions or stand alone products to telecom and
Internet-based service providers worldwide.

"Phone.com has successfully created the leading Internet-based application
platform for wireless telecommunications," said Alain Rossmann, chairman
and chief executive officer of Phone.com. "We now significantly broaden our
target markets and product offerings with Onebox.com's advanced Unified
Messaging applications. Together we will provide telecom and Internet-based
service providers a time-to-market advantage in deploying the
next-generation killer applications as the convergence of the Internet and
wireless telephony accelerates. I am pleased to welcome Onebox.com's
experienced team to Phone.com, and to announce that Onebox.com's chief
executive officer, Ross Bott, will join Phone.com as chief operating
officer for our product groups."

"The demand for unified messaging solutions is robust, as evidenced by
Onebox.com's success in adding 2.5 million subscribers in just six months,"
said Ross Bott, chief executive officer of Onebox.com. "Users enjoy
universal access to email, voicemail, and faxes from their phone,
Internet-connected PC, browser-enabled mobile phone. Onebox.com's offerings
combined with Phone.com's extensive footprint of over 50 wireless operators
and powerful sales channels should accelerate the deployment of these
advanced unified messaging solutions. I am delighted to assume my new
responsibilities at Phone.com."

Based on a highly scalable and reliable IP infrastructure, Onebox.com has
designed its architecture to deliver high-quality carrier class services
that scale to support millions of subscribers and to support future
innovations in communications technology. Phone.com will offer Onebox.com's
applications by providing state-of-the-art unified messaging solutions as a
hosted service or as standalone products. This choice gives telecom and
Internet-based service providers the ability to rapidly deliver the
messaging services consumers demand.

"Over the past two months we have executed a strategy to acquire the
best-of-breed applications for next-generation communication services,"
said Alan Black, chief financial officer of Phone.com. "With the
acquisition of @Motion, Paragon, and now Onebox.com, Phone.com has raised
the bar yet another level and has re-written the competitive landscape in
the wireless Internet industry. In addition to strengthening our
competitive position at the infrastructure level, we have now leapfrogged
our competitors at the applications layer. These acquisitions expand our
target markets and are expected to fuel revenue acceleration."

In connection with the acquisition, Onebox.com's shareholders will receive
a fixed number of approximately 6.5 million shares of Phone.com common
stock. The stock-for-stock transaction will be accounted for using purchase
accounting and closing is anticipated to occur during Phone.com's fourth
quarter of fiscal 2000. The acquisition is subject to customary closing
conditions and regulatory approval. Integration of the two companies and
their products is expected to occur rapidly. Onebox.com's 70 employees will
be fully integrated into Phone.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.

ABOUT ONEBOX.COM

Onebox.com is the communications application service provider (CASP)
meeting the global demand for wireless and Internet-based messaging. With a
highly scalable, highly reliable pure IP infrastructure, Onebox.com
provides services for phone carriers, ISP's and Internet portals to provide
millions of customers worldwide with email, voicemail, and wireless
applications. Onebox.com is a privately held company based in San Mateo,
California.

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 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 are included in
Phone.com's 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.

The Phone.com name and logo and the family of terms carrying the "UP."
prefix are trademarks of Phone.com, Inc. Onebox and Onebox.com are
registered trademarks of Onebox, Inc. All other company, brand and product
names may be marks that are the sole property of their respective
                                  owners.


For more information:

Contact Phone.com Worldwide Public Relations

    Phone.com, Inc.
    Alan Black
    Chief Financial Officer
    650-817-1447
    investor@corp.phone.com

    The Carson Group
    Bonnie McBride
    Managing Director
    415-617-2540


    MEDIA RELATIONS:

    Phone.com, Inc.
    Rowan Benecke
    PR21
    415-369 8102
    rowan_benecke@pr21.com

    Phone.com (Europe) Limited
    Vicky Ryce
    Text 100 Ltd.
    44-0-181-242-4248
    vickyr@text100.co.uk