Nortel Delivering Industry's Broadest Portfolio of Unified Communications Solutions Built Around Microsoft Office Communications Server 2007

A strategic systems integration partner for Microsoft's unified communications solutions, Nortel has more than 120 Microsoft Certified Systems Engineers and 40 people certified to support Exchange 2007. In addition, Nortel expects to have more than 100 people certified to support Office Communications Server 2007 by early 2008. To date, Nortel has provided unified communications services from the Nortel Global Services portfolio for more than 40 joint Microsoft and Nortel unified communications solution deployments globally.

In a separate release today, Nortel and Dell unveiled an agreement to provide Dell's North American customers with complete unified communications solutions leveraging Nortel's entire Enterprise Solutions portfolio including solutions from the Nortel and Microsoft's Innovative Communications Alliance, as well as a suite of related services.

Gartner Inc, the world's leading information technology research and advisory company, has positioned Nortel in the Leaders quadrant in the '2007 Unified Communications Magic Quadrant' report. To view Gartner's Magic Quadrant for Unified Communications, 2007(2) click here .

About Nortel

Nortel is a recognized leader in delivering communications capabilities that make the promise of Business Made Simple a reality for our customers. Our next-generation technologies, for both service provider and enterprise networks, support multimedia and business-critical applications. Nortel's technologies are designed to help eliminate today's barriers to efficiency, speed and performance by simplifying networks and connecting people to the information they need, when they need it. Nortel does business in more than 150 countries around the world. For more information, visit Nortel on the Web at www.nortel.com . For the latest Nortel news, visit www.nortel.com/news .

Certain statements in this press release may contain words such as "could", "expects", "may", "anticipates", "believes", "intends", "estimates", "targets", "envisions", "seeks" and other similar language and are considered forward-looking statements or information under applicable securities legislation. These statements are based on Nortel's current expectations, estimates, forecasts and projections about the operating environment, economies and markets in which Nortel operates. These statements are subject to important assumptions, risks and uncertainties, which are difficult to predict and the actual outcome may be materially different from those contemplated in forward-looking statements. For additional information with respect to certain of these and other factors, see Nortel's Annual Report on Form10-K, Quarterly Reports on Form 10-Q and other securities filings with the SEC. Unless otherwise required by applicable securities laws, Nortel disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

(1)Nortel, the Nortel logo and the Globemark are trademarks of Nortel Networks.