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To: MikeM54321 who wrote (577)6/8/2000 2:07:00 PM
From: Kenneth E. Phillipps  Read Replies (1) | Respond to of 847
 
NT's VoIP solution:

Nortel Networks, TollBridge Deliver First
Standards-Based Cable VoIP Gateway

Adelphia to Begin Field Implementation of Carrier-Class Solution
Following Successful Trial

ATLANTA, June 8 /CNW/ - Nortel Networks (NYSE/TSE: NT) today broadened its comprehensive
portfolio of cable telephony solutions, adding the industry's first commercially available, standards
based Voice-over-IP (VoIP) gateway for cable operators.

Nortel Networks' IP-PSTN Gateway, a private label version of Tollbridge Technologies' TB200
Voice Gateway, can be used in tandem with Nortel Networks' Cornerstone Super Access solutions to
deliver VoIP capability over hybrid fiber/coax (HFC) networks. Tollbridge and Nortel Networks have
signed a letter of intent to negotiate an OEM supply agreement.

Adelphia Communications Corporation (NASDAQ: ADLAC - news), the nation's sixth largest
cable MSO (Multiple System Operator), in conjunction with its Competitive Local Exchange Carrier
(CLEC) subsidiary, Adelphia Business Solutions (NASDAQ: ABIZ - news), plans to begin field
implementation of the Nortel Networks' IP-PSTN Gateway immediately. Adelphia and Nortel
Networks joint venture partner ANTEC (NASDAQ: ANTC - news) completed successful lab trials
in mid- May.

Nortel Networks' IP-PSTN Gateway provides the necessary link between Class 5 switches, found in a
number of MSO networks, and PacketCable based IP access solutions. This allows MSOs to generate
new revenues from IP services, while taking advantage of existing Class 5 investments to continue
delivering feature-rich PSTN services. The Nortel Networks IP-PSTN Gateway is the first deployed
cable telephony voice gateway on the market based on CableLab's PacketCable standards.

"We are pleased with the initial results of Nortel Networks' Carrier Grade IP telephony solution,"
said James Rigas, executive vice president of Adelphia Communications. "Local loop deregulation
and solid PacketCable standards for IP telephony make it feasible for Adelphia to capture solid
market share by delivering quality voice and new IP services at a major metropolitan scale with
extremely competitive prices."

CableLabs created the PacketCable standard for end-to-end packet telephony, and is in the process
of modifying the standard for gateway- oriented solutions.

"PacketCable is the cutting edge standard for advanced IP telephony services in the cable industry,"
said Dr. Richard R. Green, chief executive officer, CableLabs. "CableLabs is pleased to endorse this
significant step in moving the cable communications industry forward."

"Nortel Networks is now delivering carrier-grade PacketCable-based voice services that offer
significant benefits for those operators using IP in the local loop," said Steve Pusey, president, Cable
Media Solutions, Nortel Networks. "This new solution set once again demonstrates the Nortel
Networks' commitment to Packet Cable standards, which will enable higher value services for cable
operators in North America."

Adelphia Communications is the sixth largest cable television provider in the United States serving
approximately 5.3 million cable subscribers. Through its telephony subsidiary, Adelphia Business
Solutions, the company has evolved into a national integrated communications provider. Adelphia
Business Solutions is constructing a 30,000-mile long-haul fiber optic network that will support the
company's full line of communication service offerings, including local and long distance voice
services, messaging, high-speed data and Internet services. By the end of 2001, Adelphia Business
Solutions will serve more than 200 cities throughout the U.S. For more information, visit Adelphia's
web site at www. adelphia.net or Adelphia Business Solutions' web site at www.adelphia-abs.com.

Founded in March 1998 and located in Santa Clara, Calif., TollBridge Technologies is the leading
provider of high-quality voice-over-broadband solutions to the new generation of carriers.
TollBridge solutions change the economics of delivering voice services by allowing carriers that own
Class 5 switches to use broadband access technologies, such as DSL or cable, to bypass the Incumbent
Local Exchange Carrier (ILEC) and deliver toll-quality voice and integrated data services. For more
information about TollBridge Technologies, visit the company's Website at www.tollbridgetech.com.

Nortel Networks is a global leader in telephony, data, eBusiness, and wireless solutions for the
Internet. The Company had 1999 U.S. GAAP revenues of US$21.3 billion and serves carrier, service
provider and enterprise customers globally. Today, Nortel Networks is creating a high-performance
Internet that is more reliable and faster than ever before. It is redefining the economics and quality of
networking and the Internet through Unified Networks that promise a new era of collaboration,
communications and commerce. Visit us at www.nortelnetworks.com

For further information

Amy Huitt, Nortel Networks (919) 997-5309, huitta@nortelnetworks.com
Paul Heimel, Adelphia Communications Corporation (814) 274-9830
Archived images on this organization are available through CNW E-Pix at
www.newswire.ca. Images are free to members of The Canadian Press.