DSET Announces BusinessEdge to Partner in Alliance Program

Agreement will help DSET Accelerate Gateway Deployment

Bridgewater, NJ - January 10, 2000 - (NASDAQ: DSET) - DSET Corporation, a leading supplier of business-to-business e-commerce solutions for the telecom industry, and BusinessEdge Solutions, Inc., a consulting firm with broad communications industry expertise specializing in OSS strategy and integration, eBusiness enablement, and strategic Information Technology (IT) services, have signed an agreement under which BusinessEdge will offer systems-integration services to DSET's competitive local exchange carrier (CLEC) customers. Services to be provided by BusinessEdge include installation of DSET solutions, testing, and project management for establishing interconnection between a CLEC's operations support system and appropriate systems at trading partners such as incumbent carriers.

Being able to take advantage of the experience BusinessEdge offers in optimizing operations and implementing telecom software solutions will help CLECs quickly and cost-effectively deploy DSET's family of solutions for automating critical pre-order, ordering, and post-order functions. These functions include providing sales quotes; ordering local loops and high-capacity circuits; supporting 911, calling-card, and caller ID services; changing long-distance providers; and trouble-ticket administration.

According to David Cole, director of DSET's Alliance Program, "Demand for the company's gateways has led DSET to partner with companies such as BusinessEdge so that CLECs can contract with a systems integrator to quickly obtain a suite of services that helps them to get their electronic-bonding gateways working as soon as possible. Our Alliance Program will make these services available through leading systems-integrator partners, including BusinessEdge."

Cole went on to explain that the assistance available from BusinessEdge will encompass the often complex technical aspects of the exchange of information between CLECs and their trading partners, which is basic to turning on and maintaining service for a CLEC's customers. He said, "All of our systems-integrator partners will be ready to assist with automating this critical process."

"As a partner in DSET's Alliance Program, BusinessEdge offers emerging CLECs integration solutions for rapid market deployment. BusinessEdge understands the speed to market demands and industry specific issues facing new carriers as they position themselves in the marketplace," said Shailendra Jain, managing partner of BusinessEdge Solutions. "By offering partner solutions, such as the integration and project management services provided by BusinessEdge, it's clear that DSET is committed to providing a comprehensive and fully operational suite of integrated services to their customers."

Michael Smith, DSET's vice president of customer satisfaction, said that a new DSET training program for systems integrators has also been introduced as part of the company's Alliance Program. "We all bring special expertise to the task at hand," he stated, "and this training is intended to equip our partners with the detailed knowledge about DSET solutions they will need to deliver the best possible service to our CLEC customers."

Smith concluded, "It's our intention to join forces with systems integrators that can handle all aspects of what can be a very complex process. Our customers can thus be assured that the integration of DSET gateways with a variety of operations support systems and their trading partners will be accomplished with the skill, speed, and economy that the marketplace demands."

About BusinessEdge:

BusinessEdge is a next generation, Industry eBusiness Integration firm specializing in eBusiness enablement and strategic Information Technology (IT) services for the Communications, Energy, Insurance, and Financial Services industries. BusinessEdge provides eBusiness and technology strategy, business process optimization, and eBusiness integration services that enable our clients to gain a financial and competitive edge in their markets. In addition, BusinessEdge is a leader in developing and implementing innovative, industry-focused, high-impact eBusiness strategies and solutions that enable the competitive advantages associated with web-based transactions, including creating channels and expanding market access, while reducing cost of service. Founded in 1999, with over 250 employees, BusinessEdge is headquartered in Edison, NJ, and operates regional offices in New York, NY, Dallas, TX, Denver, CO, and Washington, D.C. BusinessEdge is the sponsor of www.industryedge.com a virtual community for the Communications industry with discussion forums, news, and package intelligence, and VelOSSity.com, an eBusiness integration solution center (www.velOSSity.com). For more information, visit the BusinessEdge web site at www.businessedge.com.

About DSET:

DSET Corporation is a leading provider of business-to-business e-commerce solutions for the global telecommunications marketplace. The DSET suite of electronic-bonding gateways is designed to interconnect the operations support systems (OSSs) of service providers that must exchange information and share network capabilities as trading partners to provision and maintain a growing range of services for customers in the competitive telecom market. DSET's local number portability solutions play a key role in enabling business and residential customers to change service providers without changing their local phone numbers. DSET is headquartered in Bridgewater, New Jersey, and the company's Web site can be viewed at www.dset.com.

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.

BusinessEdge Contacts:

Melissa Alvis, Public Relations Manager, 732-549-8500 Ext. 7882,
e-mail: malvis@businessedge.com

DSET Contacts:

Media Relations: Kathy Claxton, Corporate Marketing Communications Manager, 908-526-7500 Ext. 1280

Investor Relations: John P. Murphy, Westfield Investor Relations, 908-233-1558, e-mail: westfieldir@worldnet.att.net

DSET and the DSET logo are registered trademarks of DSET Corporation