Infranet IPT Named Editor's Choice by Internet Telephony Magazine; Portal Software is Honored for Outstanding Internet Telephony Billing Solution

Business Wire, July 6, 1999

CUPERTINO, Calif.--(BUSINESS WIRE)--July 6, 1999--

Portal Software, Inc., (NASDAQ:PRSF) the leading provider of customer management and billing software for Internet and emerging next-generation communications services, today announced that Infranet IPT(TM) was selected by Internet Telephony for its monthly Editor's Choice award. This award honors outstanding products that support Internet telephony and that have been reviewed in TMC's testing labs, a state-of-the-art testing facility run by a team of experienced telecommunications engineers.

"We are honored that Internet Telephony chose Infranet IPT for its monthly Editor's Choice award. The acknowledgement validates our focus on providing the customer management and billing infrastructure that is crucial to the success of any IP-based services," said Bob Vieraitis, senior director of product marketing at Portal. "ce providers (ITSPs), and benefits including thrds and prepaid accounts. Capabilities of Infran

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About Portal

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(c) 1999 Portal Software, Inc. All right Software, Inc.