DSET Announces Web Seminar Series That Maps the Road to Electronic Bonding for Competitive Local Exchange Carriers.

BRIDGEWATER, N.J.--(BUSINESS WIRE)--August 13, 1999--

Interactive Internet Sessions To Cover Key Pre-Order, Order,

and Post-Order Issues

(NASDAQ: DSET)-DSET Corporation will offer a series of free interactive Web seminars focused on how electronic pre-order, order, and post-order processing gateways can be critical to helping competitive local exchange carriers (CLECs) win and keep customers in today's telecom marketplace.

Three 45-minute seminars will be given without charge on August 18, and repeated on August 25 and September 1. Presentations will include automating the pre-order sales process, the exchange of order forms between CLECs and incumbent carriers, customer care, and support for long-distance service. Seminar participants will be able to learn about these topics and share their own viewpoints in real time with experts from the fields of gateway technology, deployment, and customer care.

"We're launching this new seminar program as a result of the substantial response to our initial session in July," said Bill McHale, DSET's president and chief executive officer. "CLECs know that automating all aspects of migrating customers from the incumbents is essential for their success. They need the resources to economically turn on services for new customers in days instead of weeks. Our Web seminars make it possible for people in the industry to conveniently explore how this can be accomplished. All they need is a few hours and access to our Internet site from the location of their choice."

All those registering for the seminars will eligible for special promotional offers and a "frequent flyer" program from DSET. Seminar details, promotion information, and electronic registration forms are available at www.dset.com/seminar.html

About DSET:

DSET Corporation is a leading provider of software and services to the telecommunications industry. Network-equipment manufacturers worldwide use DSET application development tools to build software applications that manage network components and support new services. DSET's interconnection solutions facilitate the automated flow of information between carriers' operations support systems (OSSs). The company's services include custom application development and consulting, as well as testing, maintenance, and training.

Statements regarding financial matters contained in this press release, other than historical facts, are forward-looking. Since all statements about DSET's plans, estimates, and expectations are based on current projections that involve risks and uncertainties, and are subject to change at any time, the company's actual results may differ materially from expected results. Investors should consider these risks and uncertainties, which are discussed in documents filed by DSET with the Securities and Exchange Commission. These documents identify important factors that could cause the actual results to differ materially from those contained in the projections or forward-looking statements. DSET expressly disclaims any obligation to update any forward-looking statements.

DSET's web site can be viewed at www.dset.com.

DSET and the DSET logo are registered trademarks of DSET Corporation.