News Release: Portal Software appoints Luca Lazzaron Regional Vice President for Southern and Eastern EMEA region

CUPERTINO, CA (December 18, 2003) — Portal Software, Inc. (Nasdaq: PRSF) today announced the appointment of Luca Lazzaron as regional vice president for the Company’s Southern and Eastern EMEA region (Italy, France, Spain, Portugal, Greece, Turkey, North Africa, Middle East Area, Eastern European countries and Russia). In his new position, Luca Lazzaron will take responsibility for Portal’s on-going relationships with some of the world’s leading telecommunications providers. Prior to joining Portal Software, Lazzaron has spent the last five years with Cisco Systems (Nasdaq: CSCO) where he held several EMEA (Europe, Middle East, Africa) management positions in sales and business development for the company’s Voice Technologies (IP Telephony, IP Contact Centre products, Unified messaging, VoIP Gateway) group.

Previous appointments include sales and general manager with GEOTEL Technology for Southern Europe (acquired by Cisco Corporation). Lazzaron also served as an account manager, regional sales manager and sales director with Parametric Technology Corporation (Nasdaq: PMTC).

“Luca’s global experience in sales and general management well qualifies him for this role. He will be a tremendous asset to the Company as it continues to establish itself in the Southern and Eastern EMEA market,” said Alan Laing, general manager EMEA, Portal Software Europe Ltd. “His leadership will help Portal meet the growing product needs of its customers, while furthering new business opportunities for Portal in the region."

About Portal Software, Inc.
Portal Software provides flexible billing and subscriber management solutions to enable organizations to monetize their voice and digital transactions. Portal’s convergent billing platform enables service providers to charge, bill, and manage a wide range of services via multiple networks, payment models, pricing plans, and value chains. Portal’s flexible and scalable product-based solutions enable customers to introduce new value added services quickly, providing maximum business value and lower total cost of ownership. Portal’s customers include thirty-five of the top fifty wireless carriers as well as organizations such as Vodafone, AOL Time Warner, Deutsche Telekom, TELUS, NTT, China Telecom, Reuters, Telstra, China Mobile, Telenor Mobil, and France Telecom. For more information, please visit www.portal.com.

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Copyright© 2003 Portal Software, Inc. All rights reserved. Infranet and the Portal logo are U.S. registered trademarks, and Portal and TelcoOne are trademarks of Portal Software, Inc. All other trademarks are the property of their respective owners. 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 the event facts or circumstances subsequently change.

Local Media Contacts:
Corporate: Maureen O’Connell, This email address is being protected from spambots. You need JavaScript enabled to view it., 408.572.3925
Europe: Geoff Devlin, This email address is being protected from spambots. You need JavaScript enabled to view it., +44 (0) 1753 244026
Asia Pacific: Kok Beng Thiam, This email address is being protected from spambots. You need JavaScript enabled to view it., +65 6248 4799
Japan: Kazuhiko Komabayashi, This email address is being protected from spambots. You need JavaScript enabled to view it., +81 3 3512 6019


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