VeriSign® Announces Global Roaming Enhancement Services

Services Further Expand Interoperability Across Global Networks

MOUNTAIN VIEW, CA. – September 14, 2004 – VeriSign, Inc. (Nasdaq: VRSN) a leading provider of intelligent infrastructure services that make the Internet and telecommunications networks more reliable and secure, today announced immediate availability of new services that make global roaming easier for wireless operators and their subscribers. These new services, VeriSign’s Protocol Interworking Services for GSM and the WorldCell Roaming Service Bureau, are available to operators including those participating in VeriSign’s Global Roaming Consortium (GRC). The GRC is an organization of more than 50 carriers in 25 countries throughout the world that simplifies the roaming dialogue between AMPS, CDMA, TDMA, and GSM networks.

While GSM networks in the Americas use ANSI-based roaming protocols, GSM networks in the rest of the world typically use protocols based on ITU standards. VeriSign’s Protocol Interworking Services for GSM operators allow these varying networks to seamlessly interoperate by providing the appropriate protocol and routing address conversions. As a result, operators are able to support international roamers in their markets while simultaneously allowing their subscribers to roam internationally on the networks of their roaming partners.

“Cost-effective global roaming is a key concern for both carriers and their customers,” said Vernon Irvin, executive vice president of VeriSign Communications Services. “These enhancements unlock the global GSM network roaming footprint for subscribers of GSM and CDMA/TDMA operators alike while leveraging VeriSign’s secure network interoperability.”

Through an agreement with WorldCell. Inc., VeriSign is also introducing the WorldCell Roaming Service Bureau, allowing CDMA/TDMA operators to expand their roaming footprint. The Roaming Service Bureau option includes the networks of more than 160 GSM carriers in 120 countries worldwide. Subscribers can use their local number while roaming, regardless of the underlying technology of the visited network. A leading South American cellular operating group recently implemented the service to achieve affordable roaming with a significantly larger footprint.

“The WorldCell Roaming Service Bureau  bundles each of the necessary services and technologies required to simplify interstandard and international roaming, and is the only turnkey service to connect the CDMA/TDMA wireless technologies with the worldwide GSM networks,” said Blake Swensrud, Chairman and CEO of WorldCell, Inc. “Our relationship with VeriSign and affiliated international carriers has enabled worldwide roaming capabilities for operators in multiple countries through our Roaming Service Bureau.”

About VeriSign
VeriSign, Inc. (Nasdaq: VRSN) delivers intelligent infrastructure services that make the Internet and telecommunications networks more reliable and secure. Every day VeriSign helps thousands of businesses and millions of consumers conduct commerce and communications with confidence. Additional news and information about the company is available at http://www.verisign.com/

About WorldCell, Inc.
WorldCell, Inc. is a leading wireless services company providing global voice and data mobile services for enterprises and mobile professionals. WorldCell is based in Silver Spring, Maryland, USA with domestic offices in New York, Los Angeles, Providence and Washington, DC, and international offices in Iceland, Germany and Brazil. WorldCell, Inc. is the parent company of RSB, WorldCell (www.worldcell.com), IMC Island and WorldWisp, Inc. (www.worldwisp.com). 

About RSB Ltd.
RSB Ltd. is a Bermuda company and a member of the WorldCell Group. The RSB’s cross protocol roaming gateway permits roaming with 160+ GSM carriers in more than 120 countries through a single agreement; transmission and clearing of roaming records and the required conversion to and from CIBER and TAP; invoicing and netting based on cleared roaming records and settlement of invoices; and fraud management through tracking of high usage across countries and networks. http://www.interstandardroaming.com

For more information, contact:
VeriSign Media Relations
Leslie Rubin
lrubin@verisign.com
650.426.5363

VeriSign Investor Relations
Tom McCallum
tmccallum@verisign.com
650.426.3744

WorldCell, Inc.
Fayth Kayser
fkayser@worldcell.com
301.960.0060

Statements in this announcement other than historical data and information constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements involve risks and uncertainties that could cause VeriSign's actual results to differ materially from those stated or implied by such forward-looking statements. The potential risks and uncertainties include, among others, the uncertainty of future revenue and profitability and potential fluctuations in quarterly operating results due to such factors as the risk that VeriSign's announced strategic relationships, including the relationship described herein, may not result in additional products, services, customers, profits or revenues; and increased competition and pricing pressures. More information about potential factors that could affect the company's business and financial results is included in VeriSign's filings with the Securities and Exchange Commission, including in the company's Annual Report on Form 10-K for the year ended December 31, 2003 and quarterly reports on Form 10-Q. VeriSign undertakes no obligation to update any of the forward-looking statements after the date of this press release.