View all newsletters
Receive our newsletter - data, insights and analysis delivered to you
  1. Technology
July 7, 1997updated 05 Sep 2016 12:40pm

BT LINKS CELLSTREAM ATM SERVICE WITH MCI’S HYPERSTREAM

By CBR Staff Writer

British Telecommunications Plc has launched an international asynchronous transfer mode service, having completed a pilot service which began in December 1996,(CI No 2,958). The service links BT’s national CellStream service to its partner MCI Communications Corp’s US HyperStream service. BT is aiming the service at corporations who wish to connect to an international network, as an alternative to more expensive leased line connections. CellStream offers connections in 1Kbit increments, contrasting, says BT, with leased lines that are restricted to 2,8,34 or 140Mbit lines, and uses Permanent Virtual Circuits whose bandwidth can be altered by BT in eight hours. CellStream also offers the ATM features of guaranteed quality of service, and voice, video and data transfer over the same connection. The international service has been trailed by NetCom Internet Ltd, with a 3Mbps segment of the 45Mbps link on the TAT-12 and TAT-13 SONET transatlantic cables. BT will expand its available bandwidth as the service expands. In the ATM services market, BT competes internationally with Cable and Wireless Communications Plc, and nationally with, Energis Ltd and the Integrated Communications Network, a consortium of cable providers. BT is sensitive about CellStream costs, but it appears that leased lines are approximately double the price of comparative ATM circuits. BT also has a Switched Multi-Megabit data service running alongside CellStream, but is only suitable for data services. The company plans to expand CellStream to Europe and is testing a pilot UK-Norway service with Norwegian telco Telenor A/S, already a BT partner in the Viag Interkom GmbH German mobile phone venture, along with Munich-based German conglomerate Viag, (CI No 3,095).

Topics in this article :
Websites in our network
Select and enter your corporate email address Tech Monitor's research, insight and analysis examines the frontiers of digital transformation to help tech leaders navigate the future. Our Changelog newsletter delivers our best work to your inbox every week.
  • CIO
  • CTO
  • CISO
  • CSO
  • CFO
  • CDO
  • CEO
  • Architect Founder
  • MD
  • Director
  • Manager
  • Other
Visit our privacy policy for more information about our services, how New Statesman Media Group may use, process and share your personal data, including information on your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.
THANK YOU