Barcelona Airport Deploys Gigabit Ethernet Solution from Nortel Networks.

Business Editors/High-Tech Writers

BARCELONA, Spain--(BUSINESS WIRE)--April 29, 2003

Barcelona Airport, one of the most important airports in Europe, has deployed an extensive new communications network - based on a Gigabit Ethernet solution from Nortel Networks (NYSE:NT) (TSX:NT) - to support its evolving service and security needs.

The new network, which has replaced the airport's previous ATM network, was provided under an agreement with Aeropuertos Espanoles y Navegacion Aerea (AENA), the Spanish Airport National Authority. Unisys implemented the network, and is also providing on-going support and maintenance.

"Airport networks are one of the more complex and demanding networks that we provide," said Ariel Mazzaroni, head of Transport Solutions Group, Nortel Networks Iberia. "Nortel Networks and the technical managers of AENA have worked together to design a strong, reliable solution that meets the demanding service and security requirements of an international airport."

Those requirements include the ability to provide dedicated, secure virtual private networks (VPNs) for businesses located within the airport, and to enable video conferencing, IP (Internet Protocol) telephony and other advanced data services in support of `mission critical' applications.

The new Barcelona Airport network is based on Nortel Networks comprehensive enterprise data portfolio, including Nortel Networks BayStack Ethernet Switches and Nortel Networks Passport 8100 and 8600 Multiservice Switches. The network features distributed multi-link trunking, a Nortel Networks innovation available on Passport 8600, which allows for `fail-safe' connectivity to the network centre. It also positions the Barcelona Airport to offer sophisticated new services to airport users with minimal additional infrastructure investment.

Passport and BayStack are key elements of Nortel Networks `One network. A world of choice.' enterprise vision. This vision is centered around a commitment to increasing user productivity and driving lower networking costs through application delivery and convergence, user mobility, infrastructure security, and network resilience. Eliminating the boundaries between services, users and locations, while delivering a consistent user experience no matter where and how the network is accessed, it offers a new level of customer and `partner' engagement, bringing businesses the power of choice in deployment options.

Nortel Networks is an industry leader and innovator focused on transforming how the world communicates and exchanges information. The Company is supplying its service provider and enterprise customers with communications technology and infrastructure to enable value-added IP data, voice and multimedia services spanning Wireless Networks, Wireline Networks, Enterprise Networks, and Optical Networks. As a global company, Nortel Networks does business in more than 150 countries. More information about Nortel Networks can be found on the Web at www.nortelnetworks.com.

Certain information included in this press release is forward-looking and is subject to important risks and uncertainties. The results or events predicted in these statements may differ materially from actual results or events. Factors which could cause results or events to differ from current expectations include, among other things: the severity and duration of the industry adjustment; the sufficiency of our restructuring activities, including the potential for higher actual costs to be incurred in connection with restructuring actions compared to the estimated costs of such actions; fluctuations in operating results and general industry, economic and market conditions and growth rates; the ability to recruit and retain qualified employees; fluctuations in cash flow, the level of outstanding debt and debt ratings; the ability to meet financial covenants contained in our credit agreements; the ability to make acquisitions and/or integrate the operations and technologies of acquired businesses in an effective manner; the impact of rapid technological and market change; the impact of price and product competition; international growth and global economic conditions, particularly in emerging markets and including interest rate and currency exchange rate fluctuations; the impact of rationalization in the telecommunications industry; the dependence on new product development; the uncertainties of the Internet; the impact of the credit risks of our customers and the impact of customer financing and commitments; stock market volatility; the entrance into an increased number of supply and outsourcing contracts which contain delivery and installation provisions, which, if not met, could result in the payment of substantial penalties or liquidated damages; the ability to obtain timely, adequate and reasonably priced component parts from suppliers and internal manufacturing capacity; the future success of our strategic alliances; and the adverse resolution of litigation. For additional information with respect to certain of these and other factors, see the reports filed by Nortel Networks with the United States Securities and Exchange Commission. Unless otherwise required by applicable securities laws, Nortel Networks disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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