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To: Frank A. Coluccio who wrote (1897)8/14/1998 10:53:00 AM
From: Frank A. Coluccio  Respond to of 12823
 
MCI Completes Standardization of DSC's Litespan(R)-2000
Access Systems

August 14, 1998

DALLAS, Aug. 13 /PRNewswire/ via NewsEdge
Corporation -- DSC Communications Corporation
(Nasdaq: DIGI) announced today that MCI
Communications has standardized DSC's
Litespan(R)-2000, a Next Generation Digital Loop Carrier
(NGDLC) system, for inclusion in MCI's network. MCI
plans to feature the Litespan as one of its access
vehicles to be placed in co-location sites, where it will
provide service to the growing number of MCI local
customers. Litespan offers the scalability required to
gracefully grow as an access network element while
being hosted off existing Class 5 switches via GR-303
interfaces throughout the MCI network.

Rick Price, director of MCI's Access Engineering, said:
"DSC has been a long-standing vendor in our traditional
long-haul switched services business. Today, we're
transforming into the world's first local-to-global service
provider. Litespan will help us deliver world-class
services to our fast-growing local customer base."

Tom Wolf, DSC's vice president of MCI sales, said:
"Given the wide deployment of Litespan throughout
North America, MCI has taken advantage of a proven
technology that will give its network the capability to
offer a full suite of features, as well as a graceful
migration path to broadband as the market evolves."

Litespan is an advanced SONET (Synchronous Optical
Network)-based access platform that offers a full range
of services from narrowband to broadband. The platform
also supports xDSL (Digital Subscriber Line) technology,
as well as Fiber-to-the-Curb (FTTC) applications.
Litespan features a modular design, so that low line-sized
applications can be addressed as needed initially and the
system can later grow to fit expanding network needs.

MCI, headquartered in Washington, D.C., is a leading
provider of local-to-global communications services to
business, government and residential users. The
company's fast-growing portfolio of advanced data and
IT services accounts for a quarter of MCI's
approximately $20 billion in annual revenue. MCI
operates one of the world's largest and most advanced
digital networks, connecting local markets in the U.S. to
hundreds of locations worldwide. MCI has agreed to
merge with WorldCom, one of the world's
fastest-growing communications companies. The merger,
which is expected to be completed in mid-1998, will create
MCI WorldCom, a company uniquely positioned in the
U.S. local and long-distance markets as well as the global
data and Internet markets.

DSC Communications Corporation is a global provider of
advanced telecommunications products, including digital
switching, transmission, access and network
management systems. DSC's integrated network
solutions support voice, data and broadband services,
such as intelligent network, wireless and switched digital
video applications. DSC had 1997 annual revenues of
approximately $1.6 billion and is active in more than 60
countries worldwide. For more information about DSC
and its products, please visit the company's web site at
dsccc.com.

Litespan is a registered trademark of DSC
Communications Corporation.

SOURCE DSC Communications Corporation

/CONTACT: Terry Adams, 972-519-4358, or Media: Julie
Williams, 972-519-3089, both of DSC Communications
Corporation; or Leslie M. Aun of MCI, 918-729-5676/
/Web site: dsccc.com (DIGI)

[Copyright 1998, PR Newswire]