ACE*COMM Selected as One of 'Top 10 Public OSS Companies to Watch' by Telephony Magazine.

Business Editors/High-Tech Writers

GAITHERSBURG, Md.--(BUSINESS WIRE)--Dec. 10, 2003

Company Cited for Global Penetration of Its N*VISION(R) Convergent Mediation Product and Full Suite Of NetPlus(R) Operations and Service Management Products for Enterprises

ACE*COMM Corporation (NASDAQ:ACEC), a global provider of advanced operations support systems (OSS) solutions for communications networks, today announced it has been designated as one of the "Top 10 Public OSS Companies to Watch" by Telephony Magazine - the industry's leading publication for communications services providers. Telephony editors selected ACE*COMM for the global penetration of its N*VISION(R) mediation product and for its full suite of network performance products for enterprises. The December 2003 edition's "Top 10 to Watch" cover story is the magazine editors' collective view on what's next for the telecom industry. (To view online: http://telephonyonline.com/current_issue/index.htm)

"It is an honor to be selected by Telephony Magazine's editors for a Top 10 designation," said George T. Jimenez, CEO of ACE*COMM. "This is a strong endorsement of our vitality and achievements in what has been a difficult period for telecommunications companies. We believe this recognition results from the steps we have taken to ensure we continue to serve our target markets well - addressing their discerning requirements for the cost management and performance enhancing solutions that they have come to expect from us. We further believe these steps will position our company for a leading role as the industry starts to recover."

Many of the world's largest and most innovative service providers, enterprises, and telecom equipment manufacturers use ACE*COMM's technology to increase revenues, enhance network performance, reduce operating and capital expenses, and increase customer stability. These include Siemens, Cisco, Marconi, Birch Telecom, Level 3, Nextel, Telecom Egypt, NASA, Merrill Lynch, the US Air Force, and the US Army.

ACE*COMM has recently been recognized for a number of top honors for innovation and leadership, which include a ranking as one of the Washington Post's Top 200 companies, a 'Product of the Year' award for its NetPlus(R) solution's technological excellence and market vision from Communications Solutions Magazine, as well as a SUPERCOMM 'Superquest' award for its IP mediation deployment at Level 3 Communications. For more information on ACE*COMM's awards, visit: http://www.acecomm.com/newsevents/awards.htm.

About Telephony Magazine

Telephony is the leading publication for all communications service providers: new and incumbent, wireline and wireless. We deliver insightful and thoughtful coverage of the news, technologies and business strategies driving the industry. Telephony is delivered to more than 70,000 providers at ILECs, CLECs, ISPs, IXCs wireless carriers and cable operators. For more information, visit: http://telephonyonline.com/home/index.htm.

About ACE*COMM

ACE*COMM is a global provider of advanced Convergent Mediation(TM) products and Enterprise Telemanagement software applications. ACE*COMM's solutions are employed in wired and wireless networks that deliver voice, data, mixed media and Internet communications. Their proven technology provides the ability to capture, secure, validate, and enhance data from multiple networks. These operations are performed interactively with a data warehouse, and processed information is distributed in near real-time, to all types of carrier OSS (Operations Support Systems) and BSS (Business Support Systems). Solutions are matched to each customer's business environment. They provide the analytical tools required to extract knowledge from operating networks - knowledge our customers use to generate more revenue, reduce costs, accelerate time-to-market for new services, and deliver more effective customer support.

For more than 20 years, ACE*COMM technology has been effectively deployed in over 3500 installations in more than 65 countries world-wide - including over 100 installations in China - enabling the success of customers and partners such as AT&T, Cisco, Marconi, Motorola, Alcatel, General Dynamics, TRW, Unisys and Siemens. ACE*COMM is a registered ISO 9001 quality standard company. For more information, visit www.acecomm.com.

ACE*COMM, NetPlus, the ACE*COMM logo and N*VISION are registered trademarks, and Convergent Mediation is a trademark of ACE*COMM Corporation.

Except for historical information, the matters discussed in this news release include forward-looking statements that are subject to certain risks and uncertainties that could cause the actual results to differ materially from those projected, including, but not limited to: the failure of anticipated demand to materialise, delays or cancellations of orders due to various factors, including business and economic conditions in the U.S. and foreign countries; industry-wide slowdowns, any limitations on customers' financial resources, the continued convergence of voice and data networks, the continuing success of the Company's strategic alliances for product development and marketing, customer purchasing and budgetary patterns or lack thereof; pricing pressures and the impact of competitive products; the timely development and acceptance of new products; the Company's ability to adequately support its operations, and other risks detailed from time to time in the Company's Report on Form 10-Q and other reports filed with the Securities Exchange Commission.