ACE*COMM Signs BTI To 'Proof of Value' Purchase Program.

Business Editors/High-Tech Writers

GAITHERSBURG, Md.--(BUSINESS WIRE)--May 1, 2003

The Southeast's Leading Integrated Communications Provider Will

Deploy Award-Winning N*VISION(R) to Reap Bottom-Line Benefits

ACE*COMM Corporation (NASDAQ: ACEC), a global provider of advanced operations support systems (OSS) technologies, today announced that Business Telecom, Inc. (BTI), a leading facilities-based integrated communications provider, will acquire N*VISION Go!(TM) - ACE*COMM's rapid deployment version of it's market-leading N*VISION(R) data management solution.

After an initial investment, the Proof of Value program allows BTI's payment for the system to be commensurate with the bottom-line benefits realized.

"An in-depth analysis and feasibility study of BTI's network environment is part of the Proof of Value process. Results from this phase indicated the potential revenue and bottom-line benefits from the N*VISION(R) installation," said Pam Schaard, Vice President Information Services at BTI. "The Proof of Value program makes good business sense for us in terms of revenue assurance - particularly when ACE*COMM is prepared to share in the risk and stand by their proven ROI track record. The project is unique within our industry as the costs of its implementation will be financed in part by the revenue gains it produces."

BTI is deploying N*VISION Go!(TM) to collect and process network transaction data in real time to specifically identify and capture revenue opportunities, while at the same time improve overall network productivity.

The Field Trial phase of the Proof of Value process allowed BTI to observe the N*VISION(R) application in BTI's own operating environment, and evaluate how well the application integrates with their network environment and business practices, before making investment decisions.

"At a time when an estimated 60 percent of carriers are considering replacing their mediation platforms to capture more revenue from ongoing business and save operating costs through improved performance, ACE*COMM is prepared to stand by its excellent track record and 'prove' its value to customers while at the same time taking on some of the up-front financial risks," said Martin Demers, Chief Marketing Officer at ACE*COMM.

About the "Proof of Value" Program

Proof of Value is targeted at service providers, including integrated communications carriers and traditional telecom providers, who need to organize their network data for consistency and accuracy, assure their revenues by eliminating lost data records and incorrect transmissions, and seamlessly introduce new services without disrupting normal operations.

More information on the 'Proof of Value' program can be obtained by contacting ACE*COMM at 301/721-3064 or [e-mail].

About N*VISION Go!(TM)

N*VISION Go! (TM) is based on ACE*COMM's award-winning N*VISION(R) product. It uses the latest relational database, client/server, and multi-tier technologies, and near real-time data acquisition and analysis infrastructure, providing access to valuable operations and marketing information such as traffic flow statistics, service profitability, usage patterns, and grade of service.

Using trend analysis and planning, service providers can avoid traffic flow problems and can troubleshoot on-the-fly. It also allows for a significant reduction in fraudulent network access, through real-time analysis of abnormal traffic patterns.

About BTI

BTI (http://www.bti.com) is the premiere integrated communications provider of voice, data and Internet services to businesses in the Southeastern U.S. Founded in 1983, BTI serves more than 30,000 business customers and operates 22 local offices.

The Company owns and operates a network covering 4,400 route miles of lit fiber for extensive regional penetration, with 14 Lucent Technologies 5E 2000 digital local switches to serve local markets, as well as four network operations centers with Alcatel 600E digital long distance switches.

BTI is one of the largest privately held communications providers in the country, with annual revenues in excess of $250 million.

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, 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 future events to differ materially from those projected, including, but not limited to: the failure of anticipated demand to materialize, 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.

The Company expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in the Company's expectations with regard thereto or any change in events, conditions, or circumstances on which any such statements are based.