Nortel

Nortel
Centennial Communications Corp.

January 11, 2005 11:30 ET

Centennial Communications Selects Nortel 3G Solution for Puerto Rico, Virgin Islands


NEWS RELEASE TRANSMITTED BY CCNMatthews

FOR: NORTEL

NYSE, TSX SYMBOL: NT

AND CENTENNIAL COMMUNICATIONS CORP.

NASDAQ SYMBOL: CYCL

JANUARY 11, 2005 - 11:30 ET

Centennial Communications Selects Nortel 3G Solution
for Puerto Rico, Virgin Islands

SAN JUAN, Puerto Rico--(CCNMatthews - Jan 11, 2005) -


New Infrastructure to Improve Performance, Expand Capabilities for
Wireless Voice, Data Services

Centennial Communications Corp. (Nasdaq:CYCL), a leading wireless and
broadband telecom service provider in the Caribbean, has chosen Nortel
(NYSE:NT)(TSX:NT) to replace and upgrade its existing wireless network
in Puerto Rico and the Virgin Islands with advanced third generation
(3G) wireless technology.

This new 3G network -- based on CDMA2000 1X technology -- is expected to
increase subscriber capacity and expand service coverage to help address
growing subscriber demand for such wireless data services as mobile Web
browsing, e-mail and high-speed download of videos and graphics.

"Centennial is committed to offering its wireless customers the best
quality and most advanced service options," said Michael J. Small, chief
executive officer, Centennial. "We are strengthening our network
leadership by improving the reach, reliability, performance and
capabilities of our wireless infrastructure, a key differentiator for
our heavy usage wireless customers in this region."

"We are relying on Nortel's superior technology and extensive expertise
in deploying CDMA networks to ensure we have an infrastructure that can
meet the vast demand for wireless voice and data services in Puerto Rico
and the Virgin Islands today, while also giving us the capacity to
continue to grow and expand our service offerings in the future," said
Tom Cogar, chief technology officer, Centennial.

Nortel will deploy both core (switching) and access (radio base
stations, base station controllers) network equipment for Centennial.
The initial phase of the project is expected to be complete by July
2005.

"We're excited about working with Centennial to help them enhance the
communications experience of their subscribers with new, sophisticated
wireless services," said Kevin Taylor, vice president, Wireless
Networks, Caribbean and Latin America, Nortel. "Centennial can count on
our world-class technology and our 30-plus years of experience in
deploying advanced, reliable networks in the Caribbean region to help
them successfully complete this and future projects."

Centennial also selected Nortel in 2003 to deploy a CDMA 1X network in
the Dominican Republic.

"Centennial is a valued customer and we look forward to expanding this
relationship, and to continuing to work with them to evolve their
networks cost-effectively so they can provide advanced data services to
their customers," said Richard Lowe, president, CDMA Wireless Networks,
Nortel. "This contract also further enhances Nortel's leadership
position in providing mobile solutions for emerging markets like the
Caribbean and Latin America."

The new network being deployed by Centennial will be fully 1xEV-DO
ready. 1xEV-DO is a broadband radio technology that can support
transmission speeds higher than those currently available using ADSL and
cable modems. EV-DO provides speeds bursting in excess of 2 megabits per
second (Mbps). EV-DO users can expect more than 600 kilobits per second
(Kbps) average throughput -- equivalent to and in some cases better than
fixed broadband -- for high-speed broadband Internet, virtual office,
real-time video, and other data and multimedia services.

Nortel is deploying 1xEV-DO with leading customers around the world,
including Smartcom, Verizon Wireless, Telstra, Pelephone and Eurotel.
Nortel CDMA equipment is designed to support 1xEV-DO through modular
upgrades to existing hardware. This approach provides a cost-effective
and rapid method for bringing to market advanced wireless services and
associated revenues.

Nortel CDMA technology is designed to maximize existing customer
investments and help service providers drive down capital and operating
costs. It supports multiple frequencies, including 450, 800, 1900 and
2100 MHz. Nortel has designed, deployed and launched more than 300
wireless networks in more than 50 countries around the world. Nortel was
the first industry supplier to have wireless networks operating in all
advanced radio technologies (GSM/GPRS/EDGE, CDMA2000 1X and EV-DO, UMTS
and WLAN), and is the only end-to-end supplier of all new-generation
wireless solutions.

About Centennial

Centennial Communications (Nasdaq:CYCL), based in Wall, N.J., is a
leading provider of regional wireless and integrated communications
services in the United States and the Caribbean with over 1 million
wireless subscribers. The U.S. business owns and operates wireless
networks in the Midwest and Southeast covering parts of six states.
Centennial's Caribbean business owns and operates wireless networks in
Puerto Rico, the Dominican Republic and the U.S. Virgin Islands and
provides facilities-based integrated voice, data and Internet solutions.
Welsh, Carson Anderson & Stowe and an affiliate of the Blackstone Group
are controlling shareholders of Centennial. For more information
regarding Centennial, please visit our websites
www.centennialwireless.com, www.centennialpr.com, and
www.centennialrd.com.

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 August 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 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 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.

Nortel, the Nortel logo and the Globemark are trademarks of Nortel
Networks. CDMA2000 is a trademark of the Telecommunications Industry
Association (TIA).

-30-

Contact Information