Portal Names Maury Austin Chief Financial Officer; Seasoned Financial and Technology Executive Joins Portal Management Team

Portal Software, Inc. (Nasdaq:PRSFE) the premier global
provider of billing and Revenue Management solutions announced today
it has appointed Maury Austin as Chief Financial Officer. Austin
assumes the role from Ron Kisling who will remain with the company as
senior vice president of finance.
   Prior to joining Portal, Austin was senior vice president and CFO
of Southwall Technologies, a Palo Alto-based publicly-traded
manufacturer and marketer of thin film products. At Southwall, he
helped the company achieve and maintain profitability, regain its SEC
reporting status and created a new finance team to support the
company's continued growth.
   "Maury is a proven CFO and leader who brings 24 years of highly
applicable financial experience guiding companies through growth and
leading them to sustainable profitability," said Dave Labuda, Portal's
chief executive officer. "I am confident that Maury will build on the
work that Ron Kisling accomplished over the past months to improve our
cash flow and profitability and streamline our SEC reporting
processes."
   Prior to Southwall, Austin was CFO at Vicinity Corporation, a
Sunnyvale-based company that provided hosted enterprise marketing
services. Austin, who began his career with General Electric, has also
held positions at McDonnell Douglas Information Systems, Apple
Computer, Flashpoint Technology and Symmetricon.
   Austin holds a bachelors degree in finance and marketing from the
University of California at Berkeley and a masters of business
administration from the University of Santa Clara.
   "I am excited to join the Portal team at such an important time in
the company's effort to transform the billing and revenue management
market," said Austin. "Portal's financial reporting challenges, while
critical, are clearly outweighed by the opportunities for the company
to grow profitably and build on its rich tradition of innovation and
customer focus."

   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 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, Telstra, NTT, China Telecom, Reuters, China Mobile, Telenor
Mobil, and France Telecom.