REMINDER/XACCT Technologies to Participate in ACI Wireless Billing Systems Event; XACCT Speakers to Present Two Sessions and Co-Sponsor an Opening Night Reception.

News/Assignment Editors/High-Tech Writers

REMINDER...for Wednesday (Dec. 6)

--(BUSINESS WIRE)

WHO & WHAT:   XACCT Technologies, Inc., the leading provider of
              intelligent business infrastructure solutions for IP
              networks, will present "Profiting From Your Mobile IP
              Environment" and "Billing Mediation in a Converged
              Wireless/IP Network" at the ACI Wireless Billing
              Systems show. XACCT will also co-sponsor an opening
              night reception at the event.

WHERE & WHEN: ACI Wireless Billing Systems
              December 6-7, 2000
              Doubletree Hotel Buckhead
              Atlanta, GA

OPENING NIGHT
RECEPTION:    XACCT and Convergys are co-sponsoring an opening night
              networking reception Wednesday, December 6 at 5:00 p.m.
              During this reception, XACCT representatives will
              provide an overview of XACCT followed by an informal
              Q&A session.

SESSION:      "PROFITING FROM YOUR MOBILE IP ENVIRONMENT"
              Tal Givoly, Product Manager, XACCT Technologies, Inc.
              Thursday, December 7, 11:15 a.m.-12:00 p.m.

SESSION:      "BILLING MEDIATION IN A CONVERGED WIRELESS/IP NETWORK"
              Peter Ludeman, Chief Architect, XACCT Technologies, Inc.
              Thursday, December 7 3:30 p.m.-4:15 p.m.