Coherent Completes Second Stage for BT
Business Wire - March 27, 1997 07:01
LEESBURG, Va.--(BUSINESS WIRE)--March, 27, 1997--Coherent Communications Systems, the leading international
specialist in echo cancellation and voice enhancement technology, has recently shipped 350 groups of EC-6000 Series 2
Digital Echo Cancellers for BT's Digital International Switching Centre (DISC) at Keybridge House, UK. This represents
the completion of a major two-stage contract, which involved some 18,000 channels of Coherent echo cancellation in total.
The Coherent EC-6000 units were commissioned on schedule, operating with an Ericsson AXE 10 switch. BT's other
DISC site at Vauxhall, London, operates as an unmanned installation, with the BT Network Operations Unit (NOU)
responsible for remote site management on a day-to-day basis. Patricia Martin, International Performance Manager at BT,
commented: "BT is committed to delivering top quality, value-for-money services to its customers. With increased
digitalization and improved transmission quality of the international networks, there is a need to implement additional echo
control to countries within Europe, where previously echo was not a problem. This is the primary focus behind the latest
installation. We are impressed with the consistent performance and reliability of the Coherent cancellers delivered as the first
phase of this installation."
Coherent's focus is to provide telcos, PTTs and network operators with the tools to maximize network performance and
voice quality on wireline and wireless networks, across the full range of applications. The Company specializes in
providing a complete turnkey service, encompassing all aspects of design, supply, installation and maintenance of the
cancellers and associated network equipment. Coherent's EC-6000 Series 2 digital echo cancellers provide advanced echo
control for both wireline telephone networks and wireless digital systems. Fully compliant with ITU-T standards, the
products feature Coherent's state of the art ASIC devices, providing a flexible operating platform for consistent, reliable
performance and the application of future software products. The Coherent echo canceller uses patented Non-Linear
Processor (NLP) techniques, as well as fast and stable convergence (50mS for combined ERL and ERLE of 35dB) - both
prerequisites for modern network applications. The products are optimized to ensure superior "subjective" voice quality and
failsafe facsimile transmission.
The EC-6000 Series 2 Digital Echo Cancellers also support Coherent's range of application-specific software, enhancing the
unit's adaptability for a wide range of problem-solving in different network situations. Software can be remotely
downloaded and upgraded, providing a versatile and cost-effective means of maintaining maximum operational flexibility.
In addition, the unit features local loopback facilities, extensive alarm reporting and self-test diagnostics, as well as
significantly reduced power consumption for improved performance and reduced heat generation.
Coherent Communications Systems Corporation is the world leader in state of the art voice enhancement technology,
spanning echo cancellation platforms and associated network software. The Company's products are used globally by major
wireless and wireline telecommunications companies and network operators, including AT&T Wireless, British Telecom,
Cable & Wireless, Cellular One, Cisco Systems, Deutsche Telekom, France Telecom, KDD, Mercury, Nokia,
NORTEL, Telia, and Telmex, among the extensive list. Coherent is a fully accredited ISO 9001 company, dedicated to
maintaining the highest quality standards at every level. The Company's US headquarters is located in Leesburg, Virginia,
with European activity conducted by Coherent Communications Systems Ltd, based in Abingdon, Oxfordshire, UK.
Also available via Coherent's Web Page: coherent.com
This news release contains forward looking statements, including statements of the Company's sales and marketing
expectations, that involve risks and uncertainties associated with intense competition, variations in market growth, lack of
customer acceptance, timely availability of raw and produced materials, and competitive pricing of products as well as other
risks detailed in the Company's SEC reports.
CONTACT: Coherent (TM)
Diane McClelland, 703/724-7311
Georgina Garrett at Garrett Axford +44 (0) 1273-441200
E-mail: dmcclelland@coherent.com |
