ACC Extends Frame Relay Connectivity Options; MCI and AT&T added to list of service providers certifying ACC's Frame Relay implementation.

CUPERTINO, Calif.--(BUSINESS WIRE)--Feb. 21, 1995--Advanced Computer Communications Inc. (ACC) today announced that they have completed compatibility testing and are certified to be used on AT&T's InterSpan (sm) and MCI's Frame Relay services.

AT&T's compatibility tests were conducted by AT&T's Developmental Relations Group (DRG) at Bell Labs. With this announcement, ACC's entire portfolio of remote access router platforms are now fully compliant with such Frame Relay service providers as US WEST, Pacific Bell, and Wiltel, as well as the aforementioned AT&T and MCI. ACC's family of internetworking products includes the Danube, Nile, and Amazon bridge/routers.

"The addition of AT&T's and MCI's Frame Relay services give our customers more connectivity options when building their value-based global networks," said Gary Krall, ACC's Vice President of Marketing. "These two service providers, when combined with ACC's second to none Frame Relay implementation provide ACC's customers with not only a high quality implementation but also one with a large quantity of options."

ACC has proven their leadership in the frame relay market by being awarded the earliest "correct-by-design" frame relay interface by British Telecommunications and by placing number one in the Telia Research frame relay tests. ACC's second-to-none Frame Relay implementation leads the industry in four critical areas:

Standards Compliance. ACC believes in strictly complying to all standards procedures including the Annex A and LMI procedures.

Congestion Management. ACC's Frame Relay Congestion Management feature prioritizes traffic when congestion occurs on frame relay networks, guaranteeing bandwidth to mission-critical applications -- even during periods of severe congestion.

Network Performance - Compression. ACC offers the only standalone routers which support compression over Frame Relay.

Redundant Link Backup. With ACC's FR implementation, a failed DLCI is quickly detected and traffic is routed to backup circuit. This insures continued data transmission.

In a recent independent test, conducted by Opus One and published in the January 15, 1995 edition of Network Computing Magazine, ACC's frame relay implementation delivered superior performance in transmitting TCP/IP data over its wide area links. ACC offers the only standalone bridge/routers on the market which support data compression over Frame Relay - adding further savings for the end user. As a result of this added functionality, ACC's LAN/WAN devices deliver more packets per dollar than any competing bridge/router solution.

In the independent series of tests, ACC had the highest scores of any standalone bridge/router when testing average latency - in both short and long tests, as well as overall router performance. Other areas in which ACC was cited as being superior to the 15 routers tested, which included competitive offerings from Cisco, 3Com and Bay Networks, were in congestion control management and ACC's exclusive Bandwidth Optimization software.

About ACC

ACC is a leading manufacturer of wide-area internetworking products that provide cost-effective interconnection and management of geographically distributed computer networks. ACC leads the industry in the development of Bandwidth Optimization technologies to maximize the utilization of leased lines and switched services. ACC's products are sold world-wide through 80 leading international VARs and OEMs serving corporate and business customers, educational institutions, health care, retail establishments, governments, and PTTs.

Advanced Computer Communications is headquartered at 10261 Bubb Road, Cupertino, CA 95014; telephone: [phone]; FAX: [phone]. INTERNET: [e-mail]. World Wide Web URL: http://www.acc.com -0-

NOTE TO EDITORS: Danube, Nile, and Amazon are trademarks of Advanced Computer Communications. All other trademarks are the property of their respective owners.

CONTACT: Advanced Computer Communications

Trish Voskovitch or Rich Black, 408/366-9600