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Exhibit 99.1 (NORTEL LOGO) www.nortel.com FOR IMMEDIATE RELEASEFebruary 18, 2005For more information:Media
    
    InvestorsTina Warren
    
    (888) 901-7286(905) 863-4702
    
    (905) 863-6049tinawarr@nortel.com
    
    investor@nortel.com
 Nortel Provides Status Update TORONTO  Nortel Networks* Corporation [NYSE/TSX:NT] and its principal operating subsidiary,
Nortel Networks Limited (NNL), today provided a status update pursuant to the alternative
information guidelines of the Ontario Securities Commission. These guidelines contemplate that the
Company and NNL will normally provide bi-weekly updates on their affairs until such time as they
are current with their filing obligations under Canadian securities laws. The Company and NNL reported that there have been no material developments in the matters reported
in their status updates of June 2, 2004 through February 1, 2005; and the Companys press release
Nortel Announces New Waiver from Export Development Canada dated February 15, 2005. The Companys and NNLs next bi-weekly status update is expected to be released during the week of
February 28, 2005. ************************ About Nortel Nortel is a recognized leader in delivering communications capabilities that enhance the human
experience, ignite and power global commerce, and secure and protect the worlds most critical
information. Serving both service provider and enterprise customers, Nortel delivers innovative
technology solutions encompassing end-to-end broadband, Voice over IP, multimedia services and
applications, and wireless broadband designed to help people solve the worlds greatest challenges.
Nortel does business in more than 150 countries. For more information, visit Nortel on the Web at
www.nortel.com. For the latest Nortel news, visit www.nortel.com/news. 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 outcome of regulatory and criminal
investigations and civil litigation actions related to Nortels restatements and the impact any
resulting legal judgments, settlements, penalties and expenses could have on Nortels results of
operations, financial condition and liquidity; the findings of Nortels independent review and
implementation of recommended remedial measures; the outcome of the independent review with respect
to revenues for specific identified transactions, which review will have a particular emphasis on
the underlying conduct that led to the initial recognition of these revenues; the restatement or
revisions of Nortels previously announced or filed financial results and resulting negative
publicity; the existence of material weaknesses in Nortels internal controls over financial
reporting; the impact of Nortels and NNLs failure to timely file their financial statements and
related periodic reports, including breach of its support facility and public debt obligations and
Nortels inability to access its shelf registration statement filed with the United States
Securities and Exchange Commission (SEC); ongoing SEC reviews, which may result in changes to our
public filings; the potential delisting or suspension of Nortels and NNLs publicly traded
securities; the impact of management changes, including the termination for cause of Nortels
former CEO, CFO and Controller in April 2004; the sufficiency of Nortels restructuring activities,
including the work plan announced on August 19, 2004 as updated on September 30, 2004, including
the potential for higher actual costs to be incurred in connection with restructuring actions
compared to the estimated costs of such actions; cautious or reduced spending by Nortels
customers; fluctuations in Nortels operating results and general industry, economic and market
conditions and growth rates; fluctuations in Nortels cash flow, level of outstanding debt and
current debt ratings; Nortels ability to recruit and retain qualified employees; the use of cash
collateral to support Nortels normal course




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Page 2 business activities; the dependence on Nortels subsidiaries for funding; the impact of Nortels defined benefit plans and deferred tax assets on
results of operations and Nortels cash flow; the adverse resolution of class actions, litigation
in the ordinary course of business, intellectual property disputes and similar matters; Nortels
dependence on new product development and its ability to predict market demand for particular
products; Nortels ability to 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; barriers to 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; changes in regulation of the Internet; the
impact of the credit risks of Nortels customers and the impact of customer financing and
commitments; stock market volatility generally and as a result of acceleration of the settlement
date or early settlement, which is currently not available, of Nortels forward purchase contracts;
the impact of Nortels supply and outsourcing contracts that contain delivery and installation
provisions, which, if not met, could result in the payment of substantial penalties or liquidated
damages; and the future success of Nortels strategic alliances. For additional
information with respect to certain of these and other factors, see the most recent Annual Report
on Form 10-K and Quarterly Report on Form 10-Q filed by Nortel 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. -end- *Nortel, the Nortel logo and the Globemark are trademarks of Nortel.