Portal to Deliver Next-Generation Billing Solutions to Vodafone

Portal to Deliver Next-Generation Billing Solutions to Vodafone Operating Companies Worldwide Submitted by: Portal Software DEAD (bought by Oracle) Thursday, 2 September 2004

Portal to Deliver Next-Generation Billing Solutions to Vodafone Operating Companies Worldwide New Global Framework Agreement establishes Portal as a preferred strategic billing solutions provider to Vodafone NEWBURY, UK and CUPERTINO, CA (September 2, 2004) – Portal Software Inc. (Nasdaq: PRSF), the leading worldwide provider of billing solutions for the global communications and media markets, and Vodafone Group Plc, the world’s largest mobile telecommunications company, today announced two developments that expand Portal’s existing strategic relationship with Vodafone Group. Building on their long-term worldwide relationship, Vodafone Group and Portal have agreed on a global billing development program to standardize the creation and implementation of billing solutions for Vodafone Group Companies. Further recognizing Portal’s role as a preferred Vodafone solutions provider, Portal also announced today that it has signed a strategic Global Framework Agreement with Vodafone Group. The agreement establishes a comprehensive pricing and services framework for the deployment of Portal’s solutions by any of Vodafone’s operating companies worldwide, accelerating the speed and ease of implementation of Portal’s next-generation billing solutions. “Vodafone’s vision is to build one global brand and customer experience, and we look forward to growing our successful partnership to help them achieve this goal,” said John Little, founder and CEO of Portal Software Inc. “Our tight co-operation with Vodafone positions us to define billing strategies that will strengthen Vodafone’s competitive position and differentiate the Vodafone brand worldwide.” Portal’s revenue management platform currently powers Vodafone’s highly successful Vodafone live!™ offering, and is one of the preferred billing solutions for Vodafone operating companies worldwide. The companies called the agreement “a significant milestone in the development of their strategic relationship.” Vodafone Group CTO Thomas Geitner said, “Vodafone’s relationship with Portal will continue to develop and play a key role in helping us maintain our position as the global provider of choice for mobile service excellence and innovation.” About Portal Software, Inc. Portal is the leading worldwide provider of billing and revenue management solutions for the global communications and media markets. The company delivers the only platform for the end-to-end management of customer revenue across offerings, channels, and geographies. Portal’s solutions enable companies

Page 1 to dramatically accelerate the launch of innovative, profit-rich services while significantly reducing the costs associated with legacy billing systems. Portal is the revenue management partner of choice to the world’s leading service providers including: Vodafone, AOL Time Warner, Deutsche Telekom, TELUS, NTT, China Telecom, Reuters, Telstra, China Mobile, Telenor Mobil, and France Telecom. About Vodafone Vodafone is the world’s largest mobile community with 139 million proportionate customers, equity interests in 26 countries and Partner Networks in a further 13 countries. For further information about Vodafone, please visit the Vodafone Group website: www.vodafone.com. ### Vodafone is a trade mark of the Vodafone Group. Infranet and the Portal logo are U.S. registered trademarks, and Portal is a trademark of Portal Software, Inc. Other product and company names mentioned herein may be the trade marks of their respective owners. Forward Looking Statement Statements in this release contain forward looking statements that involve uncertainties and risks. These and other factors are described in detail in our Annual Report on Form 10-K for the fiscal year ended January 31, 2004 and our quarterly reports on Form 10-Q. All statements made in this press release are made only as of the date set forth at the beginning of this release. Portal undertakes no obligation to update the information in this release in the event facts or circumstances subsequently change. Copyright (c) 2004, Portal Software, Inc. All rights reserved. Portal Media Contacts: Corporate: Mary Devincenzi, [email protected], 408-559-1820 Europe: Geoff Devlin, [email protected], +44 (0) 1753 244026 Japan: Kazuhiko Komabayashi, [email protected], +81 3 5501 3813 Asia-Pacific: Lay Peng Teo, [email protected], +65 6248 4660 Vodafone Media Contacts: Jon Earl/Janine Young: +44 (0) 1635 673310

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