PRESS RELEASES 2001 SEC Declares DSET Registration Statement Effective Bridgewater, NJ -Dec 20, 2001 BizTelOne and DSET Announce OSS Interconnection Clearinghouse Bridgewater, NJ -Dec 18, 2001 New Trouble-ticket Gateway Shipped by DSET Bridgewater, NJ -Nov 12, 2001 DSET Reports Financial Results for Third Quarter Bridgewater, NJ -Nov 1, 2001 LSR Gateway Available Under Low-Cost Monthly Rental Program Bridgewater, NJ -Oct 16, 2001 DSET Ships New ASR Gateway Bridgewater, NJ -Oct 10, 2001 DSET Gateways Certified by BellSouth Bridgewater, NJ -Oct 9, 2001 DSET Announces New Program to Assist Competitive Service Providers Bridgewater, NJ -Oct 5, 2001 DSET Refocuses on IP Provisioning Market Bridgewater, NJ -Oct 3, 2001 DSET Announces Support for Siebel 7 Bridgewater, NJ -Oct 1, 2001 DSET Corporation's Nasdaq Trading Symbol Reverts to "DSET" Bridgewater, NJ -Sept 20, 2001 DSET Corporation to Trade Under DSETD for 20 Days Bridgewater, NJ -Aug 21, 2001 DSET Corporation Announces Stock Buy Back Bridgewater, NJ -Aug 15, 2001 DSET Announces Reverse Stock Split Bridgewater, NJ -Aug 14, 2001 DSET Announces ezPreOrder 1.2.1 Bridgewater, NJ -Aug 8, 2001 DSET Reports Financial Results for Second Quarter Bridgewater, NJ -July 31, 2001 DSET Adopts Shareholder Rights Plan Bridgewater, NJ -July 23, 2001 DSET Will Report Second-Quarter Results on July 30 Bridgewater, NJ -July 17, 2001 IDC Cites Success of DSET's Alliance Program Bridgewater, NJ -June 28, 2001 DSET and ISPsoft Agree to Merge to Offer IP Provisioning Services Bridgewater, NJ -June 26, 2001 DSET Announces ezPreOrder 1.2 Bridgewater, NJ -June 21, 2001 DSET Announces Siebel Validation, Becomes a Premier Software Partner Bridgewater, NJ -June 11, 2001 ezAccess 3.1 now availble from DSET Bridgewater, NJ -May 21, 2001 DSET Ships ezNumberPort 3.1 Bridgewater, NJ -May 10, 2001 DSET Ships New Version of ezLongDistance Gateway Bridgewater, NJ -April 30, 2001 DSET Reports Financial Results for First Quarter Bridgewater, NJ -April 26, 2001 DSET Will Report First-Quarter Results on April 26 Bridgewater, NJ -April 20, 2001 DSET Gateway Connects Network Telephone and Bell South Bridgewater, NJ -April 4, 2001 Cox Communications Chooses DSET Gateway and Service Suite Bridgewater, NJ -March 30, 2001 CenturyTel Deploys DSET Electronic-Bonding Products Bridgewater, NJ -March 8, 2001 DSET Reports Results for Fourth Quarter and Year Bridgewater, NJ -February 15, 2001 DSET supports Siebel eCommunications Bridgewater, NJ -February 13, 2001 DSET Announces ASR Receive Gateway Bridgewater, NJ -February 8, 2001 DSET Utilizes Java™ for Gateways Bridgewater, NJ -February 8, 2001 Foxfire Consulting LLC and DSET join forces to bring OSS solutions to the telecommunications market Bridgewater, NJ - February 5, 2001 DSET will report fourth quarter results on February 15th Bridgewater, NJ -January 31, 2001 WINfirst Chooses DSET Gateways for Residential Fiber-to-the-Home Customers Bridgewater, NJ - January 2, 2001