Centrinity Announces Firstclass User Group Conference To Be Held At Open Text’s Live Linkup Conference 2002

October 22, 2002

TORONTO – October 17, 2002 – Centrinity Inc. (TSX: CTI), the developer of the FirstClass® Communications Platform, today announced that a special FirstClass User Group Conference will be held in conjunction with Open Text™ Corporation’s (Nasdaq: OTEX, TSX: OTC) annual Live LinkUp Conference in Chicago on November 4-8, 2002. Open Text is the provider of Livelink®, the leading collaboration and knowledge management software for the global enterprise.

“The FirstClass User Group Conference promises to be a high value event for new and current FirstClass customers,” said John Myers, executive vice president and chief operating officer, Centrinity. “This provides an excellent opportunity to further demonstrate the value proposition of FirstClass today and how it will evolve in the future to become even more compelling for our customers.”

The FirstClass User Group Conference will showcase a number of FirstClass customer success stories. Attendees will also be able to interact with a panel of FirstClass experts to learn more on how to maximize the capabilities of their FirstClass solution. A product roadmap session will highlight the future direction of the Company’s award-winning communications platform.

FirstClass customers presenting at this year’s conference include:

Claudia Gentner is the executive vice president and chief information officer at Lee Hecht Harrison, a global services career company. Ms. Gentner’s presentation will highlight how to effectively build an online community with FirstClass to enable staff to share expertise and information in real-time.

Judi Steele is the president of the Las Vegas-based Clark County Public Education Foundation. Las Vegas is the fastest growing metropolitan area in the United States and Ms. Steele’s presentation will focus on communication strategies and overcoming growth, chaos and complexity.

Allan Cattier is the director of the Academic Technologies Group at Emory University. Mr. Cattier’s presentation will discuss the use of FirstClass as a campus wide messaging and collaboration application and the specific features that have made it successful as both a teaching and community communications tool.

“The inclusion of the FirstClass User Group Conference provides a strong complement to the focus of this year’s Live LinkUp conference,” said Tom Jenkins, chief executive officer, Open Text Corporation. “Our panel of experts presenting at Live LinkUp 2002 are excellent examples of how organizations can gain competitive advantages and successfully take their business to the next level by adopting knowledge management and collaborative technologies such as Livelink and FirstClass.”

For more information on the FirstClass User Group Conference please visit:

http://www.centrinity.com/conf_reg

About The FirstClass Communications Platform

FirstClass is a software-messaging platform that combines Centrinity’s award-winning Collaborative Groupware and Unified Communications technologies into one Common Communications Platform. At the foundation of the FirstClass Communications Platform is Centrinity’s Collaborative Groupware, which provides users with the ability to effectively communicate and share valuable resources through email, conferencing, directories, calendaring and online chats.

Centrinity’s FirstClass Unified Communications technology, seamlessly converges email, voice mail and fax messages into one unified mailbox thereby enabling users to access all of their data and messages via the device of their choice including cell phone, telephone, computer and handheld devices – anytime, anywhere.

About Open Text

Since 1991, Open Text Corporation has delivered innovative software that brings people together to share knowledge, achieve excellence, deliver innovation, and enhance processes. Its legacy of innovation began with the successful deployment of the world’s first search engine technology for the Internet. Today, as the leading global supplier of collaboration and knowledge management software for the enterprise, Open Text supports six million seats across 4,500 corporations in 31 countries and 12 languages throughout the world. As a publicly traded company, Open Text manages and maximizes its resources and relationships to ensure the success of great minds working together. For more information, visit http://www.opentext.com/

About Centrinity Inc.

Centrinity is a leading provider of cost-effective, highly scalable, feature-rich messaging and collaboration solutions to service providers, enterprises, governments, and learning organizations. Our award-winning software solutions are designed to enhance productivity and efficiency by simplifying and facilitating communications and information sharing for both individuals and groups of people working together. Centrinity is listed under the symbol ‘CTI’ on the Toronto Stock Exchange. Website: http://www.centrinity.com/.

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For more information please contact:

Margaret Williamson

Manager, Corporate Communications

Centrinity Inc.

+1-905-762-6234

margaret_williamson@centrinity.com

Margaret Dobbin

Director, Industry Analyst Relations

Open Text Corporation

+1-519-888-7111 ext.2410

mdobbin@opentext.com

Richard Maganini

Director, Media Relations

Open Text Corporation

+1-847-267-9330 ext.4266

rmaganin@opentext.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. Statements that are not statements of historical fact and statements that the Company or its management “expects”, “believes”, “may”, “will”, “project” or “anticipate” or similar statements should be construed as forward looking in nature. You are cautioned not to place undue reliance on forward looking statements. The Company has no obligation to release publicly any revisions to these forward-looking statements to reflect events or circumstances that occur after the date hereof or to reflect the occurrence of unanticipated events except as may be required under applicable securities laws. The Company further 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.