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Exhibit 99.1 News Release
    
    (NORTEL NETWORKS LOGO)www.nortelnetworks.com
 FOR IMMEDIATE RELEASE
    
    April 28, 2004For more information:Investors:
    
    Media:(888) 901-7286
    
    Tina Warren(905) 863-6049
    
    (905) 863-4702investor@nortelnetworks.com
    
    tinawarr@nortelnetworks.com
 Nortel Networks Announces William Owens as new President and CEO President and CEO, as well as former CFO and Controller, Terminated Update on Audit Committee Independent Review, Planned
Restatements and Related Matters Q1 2004 Financial
Results Delayed TORONTO  Nortel Networks* Corporation [NYSE/TSX: NT] today announced certain
management changes and an update on a number of matters. These include (i) the
status of the independent review being conducted by the Nortel Networks Audit
Committee; (ii) planned restatements and revisions to 2003 and prior year
financial results; (iii) the delay in the availability of financial results for the first
quarter of 2004; and (iv) certain potential impacts. Management Changes As previously announced, the Nortel Networks Audit Committee has been
undertaking an independent review of the circumstances leading to the
restatement of Nortel Networks financial statements for 2000, 2001 and 2002 and
the first and second quarters of 2003. As noted below, the independent review
is ongoing. In that connection, the boards of directors of Nortel Networks
Corporation and Nortel Networks Limited, the Companys principal operating
subsidiary (NNL), today announced the following senior management changes,
effective immediately:  
    
    William Owens has been appointed president and chief executive officer of
the Company and NNL. Owens replaces Frank Dunn who has been terminated for
cause.  
    
    Owens has been a director of the Company and NNL since February
2002. Until this appointment, he was the chairman and chief executive
officer of Teledesic LLC, a satellite communications company, since June
2003 and was vice chairman and co-chief executive officer from August 1999
to June 2003. Previously, he was president, chief operating officer and vice chairman of
Science Applications International Corporation (SAIC), one of the largest
employee-owned high-technology companies in the United States. Prior to
joining SAIC, Owens was vice chairman of the United States Joint Chiefs of
Staff, and the second-ranking military officer in the United States.
Owens served as Commander of the U.S. Sixth Fleet during Operation Desert Storm.




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Page 2  For additional
biographical information for Owens, please see www.nortelnetworks.com.  
    
    The appointments of William Kerr as chief financial officer and
MaryAnne Pahapill as controller have been made permanent. These
appointments had been made on an interim basis on March 15, 2004.
Kerr, a chartered accountant, originally joined Nortel Networks in
1994 as controller. Before leaving Nortel Networks in 2001, he held a
number of senior positions in the Companys Finance organization
including senior vice-president, finance and treasurer and senior
vice-president, corporate business development. Since joining Nortel
Networks in 1999, Pahapill, a chartered accountant, has held a number
of positions in the Companys Finance organization including assistant
controller and, most recently, assistant treasurer.  
    
    Former chief financial officer, Douglas Beatty, and former controller,
Michael Gollogly, both of whom had been placed on paid leave of
absence by Nortel Networks on March 15, 2004, have been terminated for
cause. In addition, the boards of directors of the Company and NNL announced that four
individuals who were senior line of business finance executives of Nortel
Networks during the periods under review have been placed on paid leave of
absence pending further progress of the independent review. The Board of Directors believes that the actions announced today are about
accountability for our financial reporting and are in the best interests of the
Company and all of its stakeholders, including our investors, customers and
employees, said Lynton (Red) Wilson, chairman of the board, Nortel Networks.
These actions are an important step in the process of restoring confidence in
the Companys leadership and financial reporting. Owens said I am fully committed to doing all that is necessary to maintain the
business momentum and leadership position of this Company. I also want to
express my unqualified support for the approximately 35,300 outstanding
employees who are the lifeblood of this Company. As an organization, we remain
committed to our business strategy of technology and solutions leadership in
helping our customers transform their networks to drive revenue growth and
improved productivity. And importantly, I want to see this Company meet the
highest standards of integrity and transparency in its financial reporting. Independent Review, Status of Restatements and Revisions to Financial Results The independent review has been focused on managements practices regarding
accruals and provisions. The Nortel Networks Audit Committee has determined to
extend the time period being covered by the independent review to include all
of 2003. While the Nortel Networks Audit Committee has not yet determined the full
extent of the adjustments that will be required, it has determined that Nortel
Networks previously announced unaudited results for the year ended December 31,
2003 will need to be revised. It has also determined that Nortel Networks will
need to restate the financial results reported in each of its quarterly periods
of 2003 and for earlier periods including 2002 and 2001. Based on the Companys work to date with respect to the planned restatements
and subject to the limitations described below, Nortel Networks preliminary
partial estimates to date of the principal impacts of the restatements and
revisions are as follows:




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Page 3  
    
    a reduction of approximately 50 percent in previously announced net earnings for 2003; these amounts will largely be
reported in prior periods, resulting in a reduction in previously reported net losses for such periods including 2002 and
2001;
    
    a reported net loss for the first half of 2003 compared to the previously announced net earnings for that period;
    
    no material impact to prior period revenues; and
    
    no material impact to the Companys cash balance as at December 31, 2003. The Companys work to date with respect to the planned restatements and
revisions is subject to a number of important limitations, including:  
    
    the ongoing work of the Nortel Networks Audit Committee independent review, including with respect to the second half of
2003;
    
    the significant work to be done by the Company, including with respect to the second half of 2003, accounting
documentation and reporting systems issues and the impact of accounting for certain matters, including foreign exchange;
    
    the previously disclosed material weaknesses in the Companys internal controls over financial reporting; and
    
    the audit of the Nortel Networks financial statements by the Companys independent auditors. In addition, in light of the foregoing, the Company has not finalized its
financial statements as at December 31, 2003. Until the Company finalizes its
financial statements, subsequent events or information may result in
adjustments to certain estimates used in the preparation of the Companys year
end and/or quarter end financial statements. At this time, the Company cannot
estimate the impact of any such adjustments on its results of operations or
financial position. The Nortel Networks Audit Committee will take the necessary time so that its
review of the issues is thorough and that appropriate corrective actions are
implemented. The Audit Committee is striving to complete its work as soon as
practicable. Following completion of the independent review, the Company will
work to complete its full year 2003 and interim 2004 financial statements and
the restated financial statements and to facilitate the completion of the
related audits as soon as practicable. Nortel Networks will continue to cooperate with the regulatory authorities in
connection with their previously announced investigations. The preliminary partial estimates of the impacts of the restatements described
above have not been the subject of a review or audit engagement by Nortel
Networks independent auditors, Deloitte & Touche LLP. Pending the issuance by
Deloitte & Touche LLP of its audit opinions in respect of the Companys and
NNLs planned restated 2002 and 2001 financial statements, the financial
statements of the Company and NNL for such periods and the auditors reports
thereon should not be relied upon. In addition, the Companys previously
announced unaudited financial results for the year ended December 31, 2003 and
the quarterly periods included therein should not be relied upon. Availability of Q1 2004 Financial Results As a result of all of the above, Nortel Networks is not in a position at this
time to announce preliminary financial results for the first quarter of 2004.
The Company can report, on a preliminary unaudited basis, that its cash balance
as at March 31, 2004 was approximately US$3.6 billion, down from approximately
US$4.0 billion as at December 31, 2003. The reduction was
primarily due to payments made in the first quarter of 2004 under the Nortel Networks
employee incentive compensation plans as well as cash outlays for
restructuring and a real estate transaction.




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Page 4 Q1 2004 Business Developments The following are certain comments on Nortel Networks business developments
during the first quarter of 2004. During the quarter, wireless broadband solutions continued to show momentum
across all technologies, showing a particular strength in UMTS (Universal
Mobile Telecommunications System) with a notable success in the timely
deployment for Orange in the south of France. In addition, the Company made
progress with its GSM-R (GSM for Railways) solution in China, Spain and the
U.K., and a new 450 MHz CDMA (Code Division Multiple Access) solution with
deployments announced in Eastern Europe. Enterprise solutions saw slower momentum in all areas except within the
Companys convergence portfolio, which showed strength. Nortel Networks
continued to gain traction in the healthcare sector with a number of
deployments throughout Canada and the United States. Wireline solutions momentum was impacted by North American seasonality in the
first quarter, particularly within the TDM business. VoIP (voice over Internet
protocol) continued its momentum, but reflected some choppiness associated with
initial contract phases. Nortel Networks made new inroads supporting
its carrier
customers in delivering managed and hosted multimedia application services. Optical solutions continued to make progress in its areas of focus, primarily
in metro WDM and next generation SONET, with deployments of broadband
networking solutions. Nortel Networks also announced strategic alliances with
Calix, ECI Telecom and KEYMILE to deliver next-generation ultra-broadband
solutions. Nortel Networks Limited The financial results of NNL are consolidated into the Companys results. NNLs
financial statements for the applicable periods will also be restated upon any
restatement of the Companys financial statements. NNLs preferred shares are
publicly traded in Canada. Update on Certain Potential Impacts Debt Securities As previously announced, as a result of the delay in the filing of the 2003
Form 10-K beyond March 30, 2004, the Company and NNL are not in compliance with
their obligations to deliver to relevant parties their filings with the United
States Securities and Exchange Commission (the SEC) under their public debt
indentures. Approximately US$1.8 billion of notes of NNL (or its subsidiaries)
and US$1.8 billion of convertible debt securities of the Company are
outstanding under the indentures. The delay does not result in an automatic
event of default and acceleration of the long-term debt of the Company or NNL.
If the holders of at least 25 percent of the outstanding principal amount of
any relevant series of debt securities provide notice of such non-compliance to
the Company or NNL, as applicable, and the Company or NNL, as applicable, fails
to file and deliver the relevant 2003 Form 10-K within 90 days after such
notice is provided, then the trustee under the indenture or such holders will
have the right to accelerate the maturity of the relevant series of debt
securities. While such notice could have been given at any time after March 30,
2004, to date neither the Company nor NNL has received any such notice. In
addition, if the required percentage of holders under one series of debt
securities were to give such a notice and, after the 90 day cure period
expired, were to accelerate the maturity of such debt securities,
then the principal amount of each other series of debt securities could, upon
10 days notice, be




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Page 5 accelerated without the lapse of an additional 90 day cure
period. Based on inquiries to date, the Company believes that approximately 34
percent of the outstanding principal amount of the US$150 million 7.875% notes
due June 2026 issued by a subsidiary of NNL and guaranteed by it are held by a
group of related holders. Other than with respect to that series of debt
securities, based on such inquiries, neither the Company nor NNL is aware of
any holder, or group of related holders or parties, that holds at least 25
percent of the outstanding principal amount of any relevant series of debt
securities. The Company also believes based on such inquiries that
approximately 23 percent of the outstanding principal amount of the US$150
million 7.40% notes due June 2006 issued by NNL are held by a single holder. If an acceleration of the Companys and NNLs debt securities were to occur,
the Company and NNL may be unable to meet their respective payment obligations
with respect to the related indebtedness. In such case, the Company and NNL
would seek alternative financing sources to satisfy such obligations. At
present, neither the Company nor NNL has any agreements or understandings in
place with respect to any such financing. EDC Support Facilities As previously announced, NNL obtained a waiver from Export Development Canada
(EDC) to permit continued access by NNL to the EDC performance-related
support facility in accordance with its terms while the Company and NNL
complete their 2003 Form 10-K filing obligations. The waiver will expire on
May 29, 2004. Because the developments announced today will result in a delay
in such filing beyond May 29, 2004, NNL intends to request a new waiver from
EDC to cover the period beyond May 29, 2004. There can be no assurance that NNL
will receive a new waiver or as to the terms of any such waiver. If such a
waiver is not received, EDC would as of May 29, 2004 have the right to
terminate its commitments under the facility, which provides for up to US$300
million of committed support (which support is conditioned upon, among other
things, the maintenance of minimum credit ratings of B from Standard & Poors
Ratings Service and B3 from Moodys Investors Service, Inc. and the absence of
a material adverse change) and US$450 million of uncommitted support. EDC
would further have the right to exercise certain rights against collateral
under NNLs security documents if the underlying instruments or performance
bonds become due, or require that NNL cash collateralize all existing support.
As at March 31, 2004, there was approximately US$326 million of outstanding
support under this facility. Credit Facilities NNL has notified the lenders under its US$750 million five-year credit
facilities that it is terminating these credit facilities. NNL will be unable
to file its 2003 Form 10-K by April 29, 2004 which would permit the lenders
under these credit facilities to terminate their commitments under such
facilities. The five-year credit facilities, which would otherwise expire by
their terms in April 2005, have remained undrawn since their effectiveness in
April 2000. Other Matters The Company and NNL do not expect to be in compliance with certain U.S. and
Canadian securities regulations for the timely filing of their unaudited
interim financial statements for the first quarter of 2004 prepared in
accordance with United States and Canadian generally accepted accounting principles
(GAAP) and their Canadian GAAP audited financial statements and Annual
Information Form for the year 2003. The Company and NNL will each be filing
with the SEC a Form 12b-25 Notification of Late Filing relating to the delay in
filing its unaudited interim financial statements for the first quarter of
2004.




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Page 6 Pending the filing of its 2003 and first quarter 2004 Canadian GAAP financial
statements, Nortel Networks intends to satisfy the Alternative Information
Guidelines recommended by the Ontario Securities Commission. The Ontario
Securities Commission, and other Canadian securities regulators may, in light
of the Company and NNL not filing such financial statements in a timely
manner, impose a cease trade order related to the Companys and NNLs
securities against some or all persons who have been directors, officers or
insiders of the Company or NNL, which cease trade order would generally not
affect the ability of persons who have not been directors, officers or insiders
of the Company or NNL to trade in their securities. The Company will hold a
conference call at 8:45 a.m. ET on April 28, 2004 to
discuss todays announcement. 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 or
www.nortelnetworks.com/media_center. 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 Nortel Networks independent review
and planned restatement of its previously announced or filed financial results;
the impact of the management changes announced on April 28, 2004; the impact
of the inability to meet Nortel Networks filing obligations on credit and
support facilities and public debt obligations; the sufficiency of Nortel
Networks 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; continued reductions in spending by Nortel
Networks customers; fluctuations in Nortel Networks operating results and
general industry, economic and market conditions and growth rates; the
communication by Nortel Networks auditors of the existence of material
weaknesses in internal control; Nortel Networks ability to recruit and retain
qualified employees; fluctuations in Nortel Networks cash flow, level of
outstanding debt and current debt ratings; Nortel Networks ability to meet the
financial covenants in its credit facilities; the use of cash collateral to
support Nortel Networks normal course business activities; the dependence on
Nortel Networks subsidiaries for funding; the impact of Nortel Networks defined
benefit plans and deferred tax assets on results of operations, Nortel Networks
cash flows and compliance with financial covenants; Nortel Networks dependence
on new product development and its ability to predict market demand for
particular products; Nortel Networks 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
Networks 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 of Nortel Networks purchase contracts; risks
associated with a consolidation of Nortel Networks common shares; the impact of
Nortel Networks 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; the future success of Nortel
Networks strategic alliances; and the adverse resolution of litigation,
investigations, intellectual property disputes and similar matters. For
additional information with respect to certain of these and other factors, see
the most recent Form 10-Q/A and Form 10-K/A 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. -end- *Nortel Networks, the Nortel Networks logo, the Globemark and Business Without
Boundaries are trademarks of Nortel Networks.




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Page 7 Nortel Networks will host a teleconference/audio webcast to discuss its April
28, 2004 press release. TIME: 8:30 AM ET on Wednesday, April 28, 2004 To participate, please call the following at least 15 minutes prior to the
start of the event. Teleconference:
    
    
    
    Webcast:North America:
    
    888-211-4395
    
    www.nortelnetworks.com/q1earnings2004International:
    
    212-231-6007Replay:(Available one hour after the conference until 11:59 pm ET, May 12, 2004)North America:
    
    800-383-0935
    
    Passcode: 21194235#International:
    
    402-530-5545
    
    Passcode: 21194235#Webcast:
    
    www.nortelnetworks.com/q1earnings2004