Centra Offers Online Collaborative Solution to Boston Area Businesses Impacted by Democratic National Convention.

LEXINGTON, Mass. -- Trial Offer Extended to Companies Operating Within Commuting Distance of Boston

E[acute accent]Centra (NASDAQ: CTRA), a leading provider of specialized application software and services for online business collaboration, today announced the availability of the "Centra Artery for the DNC." The complimentary solution is designed to help Boston area businesses cope with the travel and traffic restrictions brought on by the Democratic National Convention in Boston in July by offering them a free trial of Centra's online business collaboration solution. Centra's portfolio of collaboration solutions enable groups of people to work faster, smarter and more efficiently by allowing dispersed workers to communicate and collaborate from their home or office computer in real time using fully integrated voice-over-IP technology (VoIP). "Centra Artery for the DNC" is available to a limited number of businesses operating within eastern Massachusetts, southern New Hampshire and Southern Maine. E[acute accent]"Companies are just beginning to come to terms with how the travel restrictions brought on by the DNC may impact their businesses," said Paul R. Gudonis, CEO of Centra. "We believe that this offer will allow area businesses to continue to operate in an efficient manner, while introducing them to the huge benefits that our solutions can bring." E[acute accent]As part of the offering, area businesses will be able to adopt Centra's real time collaboration and conferencing solution through Centra's ASP from June 17, 2004 through August 31, 2004 at no charge. Additionally, Centra will be hosting an online workshop to conduct introductory training on July 15, 2004. For details about the "Centra Artery for the DNC" program and registration information, visit www.centra.com/dnc.asp. E[acute accent]With solutions specifically tailored for deploying enterprise applications, increasing sales effectiveness, effectively transferring knowledge throughout an organization's extended supply chain, and enhancing customer acquisition programs, Centra facilitates online collaboration that delivers increased business value and ROI. All solutions include Centra's hallmark VoIP technology to realize significant savings over traditional teleconferencing services. In addition, Centra's solutions can be installed as a behind-the-firewall packaged application or accessed through Centra's secure ASP network. E[acute accent]Centra's unique leadership approach was recently recognized by leading analyst firm Gartner Group within the report titled "Magic Quadrant for Web Conferencing" which evaluated Web conferencing vendors on their vision and their ability to execute on that vision.

E[acute accent]About Centra

E[acute accent]Online business collaboration solutions from Centra create workforce efficiencies and enable organizations to share and exchange business-critical information with geographically distributed customers, partners, prospects and employees. Centra's solutions integrate real-time collaboration and departmental business processes with specialized applications that increase sales effectiveness, improve collaborative learning and accelerate enterprise application rollouts and customer acquisition initiatives. Currently available in 12 languages, Centra solutions can be deployed as on-site software or through its ASP service and are supported by an active ecosystem of value-added partners, including Siebel, PeopleSoft, SAP and Deloitte Consulting. Organizations across every major industry and market sector choose Centra, including Wyndham International, Weyerhaeuser, Underwriters Laboratories, BMW and Stanford University. Headquartered in Lexington, Massachusetts, Centra serves a worldwide customer base throughout the Americas, Europe, Asia and Australia. For more information, visit www.centra.com.

E[acute accent]Centra is a registered trademark of Centra Software, Inc. All other trademarks referenced herein are the property of their respective owners.