CENTRINITY ANNOUNCES BETA TESTING FOR UNIX VERSION OF FIRSTCLASS   Company plans to support Solaris, Linux and OS X, reinforcing commitment to customers to provide FirstClass on multiple platforms Richmond Hill, ON, CANADA - August 28, 2001 - Centrinity Inc. (TSE: CTI), which develops and markets FirstClass Unified Communications and Collaborative Groupware technologies, today announced it is now in beta testing for its UNIX version of FirstClass. The company plans to support three strategic variants of UNIX including Sun SolarisTM, Linux and Apple Macintosh OS X®. Centrinity plans to begin shipping its first UNIX version of FirstClass by the end of 2001. According to a 2001 industry report from market research firm, Gartner, Unix has become the de facto standard for building large-scale application servers such as Internet services, enterprise-messaging systems, database management systems and transaction processing systems. "Centrinity's FirstClass Communications Platform is an award-winning technology that has a rich cross-platform history," said John Myers, executive vice president, Strategic Relations, Centrinity Inc. "As a customer-centric organization, we are pleased to be reinforcing our commitment to customers through the delivery of Solaris, Linux and OS X variants of FirstClass. Our support of these three types of UNIX is driven by strong customer demand. In addition, we expect that these efforts will facilitate our expansion into new markets." About FirstClass The FirstClass Unified Communications platform provides users one unified mailbox for all messaging and online collaboration.  All users, whether mobile or in the office, can access voice mail, email, and even fax messages in one location with their device of choice.  With text to voice capability, the FirstClass mailbox enables users to listen to, reply and forward email messages over the telephone.  Additionally, Centrinity's one-stop mailbox simplifies the growing need to constantly stay connected and in control with its ease of accessibility by PC or Macintosh (via web browser or FirstClass Client). About Centrinity Inc. Centrinity is a leading provider of unified communications and collaborative software solutions to service providers, enterprises and learning organizations. Our award-winning software solutions are designed to enhance productivity and efficiency by simplifying and facilitating the management of communications and information among individuals and groups.  Centrinity is listed under the symbol "CTI" on the Toronto Stock Exchange. Website: www.centrinity.com. -- 30 -- For more information please contact: Investor Relations Lawrence Chamberlain Manager, Investor Relations Tel: 905.762.6014 Email: lawrence_chamberlain@centrinity.com Media Relations Margaret Williamson Manager, Public Relations Tel:  905.762.6234 Email: margaret_williamson@centrinity.com This news release may include statements about expected future events and/or financial results that are forward-looking in nature and subject to risks and uncertainties. The company cautions that actual performance will be affected by a number of factors, many of which are beyond its control. Future events and results may vary substantially from what the company currently foresees. FirstClass is a registered trademark of a Centrinity Inc. subsidiary used under license.  Centrinity and the Centrinity logo are trademarks of Centrinity Inc. All other trademarks are the property of their respective owners.