Bell Atlantic Mobile, Motorola And Phone.Com Collaborate To Create Over-The-Air Provisioning

July 19, 1999-REDWOOD CITY, Calif.-
Bell Atlantic Mobile (NYSE:BEL),
Motorola (Nasdaq:MOT) and Phone.com, Inc. (Nasdaq:PHCM) announced today
a collaborative effort to deliver Wireless Application Protocol based
over-the-air provisioning capabilities

for CDMA handsets. This effort combines Internet and telephony open
standards to create a system capable of delivering provisioning information
as well as electronic customer care to Bell Atlantic Mobile subscribers
via CDMA phones. Motorola will provide the initial CDMA phones used
by this effort, launching with Phone.com's version 3.1 UP.Browser™ and
migrating towards full WAP compliance in 2000. The results of the collaboration
will be submitted to the CDMA Developments Group's (CDG) Over The Air
Handset Management Subgroup for stage II standardization.

Bell Atlantic Mobile licensed an enhanced version of
the Phone.com™ UP.Link™ Server Suite. The UP.Link system enables Bell
Atlantic Mobile to gain more control of its costs by dynamically managing
which networks its customers "roam" on outside of the company's service
territory. With the system,Bell Atlantic Mobile will be able to "steer"
customers to a select list of wireless carriers' networks which offer
the best service available outside the company's footprint and the most
favorable roaming fees. This capability will further improve the economics
of Bell Atlantic Mobile's SingleRate digital price plans.

With the over-the-air provisioning system, Bell Atlantic

will be able to provide its subscribers with a new level of customer
care by automatically keeping each mobile phone updated with the most
recent versions of network information such as roaming lists, area code
information, and other data parameters. The UP.Link Server Suite will
also provide Bell Atlantic Mobile with the opportunity to deliver electronic
customer care. Subscribers will be able to check their bill,and interactively
manage their individual account features directly from the interface
on their mobile phone.

Bell Atlantic, Motorola and Phone.com are committed to
the use

of open standards, such as WAP, to achieve a flexible provisioning system
that can rapidly adjust to fast-changing technology requirements. As
mobile phones gain more functionality, such as Internet microbrowsers,
contact management and email, the carrier must manage more complex user
profiles. In the future, this provisioning system will be based on open
standards and available to all CDMA carriers, handset manufacturers,
and software suppliers.

"The WAP based over-the-air provisioning system will
allow us to expand our sales channels and provide a new level of customer
care," said Richard Lynch, executive vice president and chief technology
officer of Bell Atlantic Mobile. "It is our vision to provide our customers
with instant activation, updated software, access to Email and the Internet
plus e-care services in a manner that is completely automated and personalized
for the customer. With the UP.Link Server Suite and Motorola's browser-enabled
phones, customers will begin using their wireless handsets as functional
tools for accessing banking information, purchasing products or other
Internet-based information services."

"Motorola is pleased to play a leading role in bringing
a new generation of Internet-capable CDMA solutions to market," said
Janiece Webb, senior vice president and general manager of Motorola's
Personal Networks Group. "We are able to push the technology further
with Internet and over-the-air provisioning capabilities for our CDMA
handsets. Motorola is committed to provide WAP compliant browser and
server capabilities to the industry and views this solution as an important
first step towards that goal."

"Phone.com's products leverage our WAP technology leadership
to provide carriers with secure, powerful, and extensible over-the-air
provisioning capabilities," said Alain Rossmann, chairman and chief
executive officer of Phone.com. "As wireless phones and networks become
more feature-rich our products will allow carriers to automatically
update the software and settings of these phones without subscriber
intervention. We expect that revenue from this activity will impact
our company in our FY2001."

About Bell Atlantic

Mobile Bell Atlantic Mobile owns and operates the largest
wireless network in the East, covering 120,000 square miles, and the
largest chain of retail outlets devoted exclusively to wireless voice,
data and paging. Based in Bedminster, NJ, Bell Atlantic Mobile has 6.4
million customers and 8,000 employees from Maine to Georgia and, through
a separate subsidiary, in the Southwest. Through its "Wireless at Work..."
community service program, the company uses its technology to help individuals
and communities improve security and emergency communications. Bell
Atlantic Mobile's parent, Bell Atlantic Corporation (NYSE:BEL) is one
of the world's largest wireless communications companies, with domestic
operations in 25

states and international investments in Mexico, Europe and the Pacific
Rim. For more information on Bell Atlantic Mobile visit: www.bam.com;
on global operations visit: www.bellatlantic.com/worldwide.

About Motorola

Motorola is a global leader in advanced electronic systems
and services. It liberates the power of technology by creating software-enhanced
products that provide integrated customer solutions and Internet access
via wireless and satellite communications, as well as computing, networking,
and automotive electronics. Motorola also provides essential digital
building blocks in the form of embedded semiconductors, controls and
systems. Sales in 1998 were $29.4 billion.

About Phone.com

Phone.com, Inc. (formerly Unwired Planet, 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 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

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 company, brand and
product names may be marks that are the sole property of their respective

For more information please contact:


Rowan Benecke PR21 +1 (415) 439-8811 rowan_benecke@pr21.com
(Europe) Limited

Holly James Text 100 Ltd.

+44 (0) 181 242 4104

Japan K.K.
Hiroko Kimura Phone.com Japan K.K. +81 3 5325 9204
Atlantic Mobile

Andrea Linskey

908-306-7845 linskan@bam.com

Jennifer Weyrauch