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SPRINT INSTALLS FIRST ATM SWITCH ON PUBLIC NETWORK

 WASHINGTON, April 21 /PRNewswire/ -- Sprint (NYSE: FON) today announced that it is the first major carrier to install and activate an Asynchronous Transfer Mode (ATM) switch in its public network, extending the company's leadership in data technology.
 ATM is a next-generation switching technology that enables voice, video and data to be sent quickly and efficiently over shared transmission facilities, instantaneously providing users with large amounts of network capacity as it is needed.
 "This month's deployment of ATM technology on our network is a major milestone toward delivering general commercial ATM service this year, as we promised last year," said Dominick DeAngelo, marketing vice president for the Sprint Data Services Group.
 "This is another ATM first for Sprint, along with announcing the first commercially available ATM service and the first demonstration of ATM capabilities.
 "We plan to continue to install and test switches on the network over the next several months, and anticipate testing our service with selected customers this summer," said DeAngelo. "We plan to introduce our commercial ATM service in the fourth quarter of this year."
 The first switch has been activated at Sprint's Burlingame, Calif., point-of-presence (PoP). The ATM switch -- a Broadband Access Switch (BAS) 2010 -- is supplied by Redondo Beach, Calif.-based TRW Corporation, which Sprint selected last year to provide the initial ATM switching capability within the Sprint fiber-optic backbone network. Sprint plans to install an additional switch in Stockton, Calif., in early May.
 Sprint has been running live data, image and video applications over the TRW BAS 2010 switch in a lab environment since last November, with plans to continue to run further test applications throughout the deployment period. "After six months of testing, the TRW switch has proven to be fast and reliable. We are confident of the technology as we deploy it to the production environment," DeAngelo said. Sprint will release details on pricing and service specifics on its ATM service this summer.
 Sprint's initial ATM network will be interconnected with DS-3 circuits, and later with OC-3 (155 Mbps) links, and OC-12 (622 Mbps) links in 1995. The higher speed transmission links will be part of Sprint's Synchronous Optical Network (SONET), and are the second phase of Sprint's broadband migration plans to offer ATM over SONET.
 The new technologies will enable data communications networking to evolve from the current T1-based bandwidth of 1.5 million bits per second capacity to substantially faster speeds, with speeds to 45, 155 and 622 million bits per second in the next few years, a total speed-up of more than 400 times the current bandwidth.
 Sprint has a history of leadership in the development of next- generation data technology, including being the first major carrier to announce plans (June '92) for a commercially available ATM service months ahead of initial industry estimates; to outline its broadband strategy (Sept. '92) allowing customers to smoothly migrate to the


latest technologies; to announce plans to build a nationwide all-SONET network by issuing the industry's first RFP for equipment (Jan. '93); and to demonstrate ATM capabilities (Feb. '93 ComNet) and wide-area ATM capabilities (March '93 Interop).
 Sprint is a diversified international telecommunications company with more than $10 billion in annual revenues and the United States' only nationwide all-digital, fiber-optic network.
 Its divisions provide global long distance voice, data and video products and services, local telephone services to nearly 5.9 million subscriber lines in 19 states, and cellular operations that serve 42 metropolitan markets and more than 50 rural service areas.
 -0- 4/21/93
 /CONTACT: Janis Langley, 202-828-7427 or, after hours, 703-533-3322, or Evette Fulton, 202-828-7411 or, after hours, 301-230-0978, both of Sprint/
 (FON)


CO: Sprint ST: District of Columbia IN: TLS SU: PDT

IH-TW -- DC027 -- 8832 04/21/93 14:21 EDT
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Publication:PR Newswire
Date:Apr 21, 1993
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