Coherent Completes Second Stage for BT.LEESBURG, Va.--(BUSINESS WIRE)--March, 27, 1997--Coherent Communications Systems, the leading international specialist in echo cancellation The elimination of an echo in a two-way voice transmission. Echo is created in the telephone company's central office switch when two-wire lines from the customer are converted to four-wire lines for backbone trunks. 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 NOU Noumea, New Caledonia - Tontouta (Airport Code)
NOU No, You
NOU No Underwear (Como & Brigante fragrance)
NOU Not Often Used
NOU Northeastern Ohio Universities ) 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 digitalization /dig·i·tal·iza·tion/ (dij?i-tal-i-za´shun) the administration of digitalis or one of its glycosides in a dosage schedule designed to produce and then maintain optimal therapeutic concentrations of its cardiotonic 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 See ITU.
ITU-T - International Telecommunications Union standards, the products feature Coherent's state of the art ASIC (Application Specific Integrated Circuit) Pronounced "a-sick." A chip that is custom designed for a specific application rather than a general-purpose chip such as a microprocessor. 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 (Natural Language Processing) The capability of understanding human language. If the language is spoken, voice recognition plays an important role in converting the sounds to individual words. Then, natural language processing figures out what the words mean. ) techniques, as well as fast and stable convergence (50mS for combined ERL See URL. and ERLE ERLE Echo Return Loss Enhancement
ERLE Energy-Related Laboratory Equipment
ERLE Engine Rotor Life Extension 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 The telephone and communications carrier that provides services in Great Britain and Northern Ireland. It used to be a division of the British Post Office, but was privatized in 1984 under Margaret Thatcher's administration. , Cable & Wireless, Cellular One, Cisco Systems, Deutsche Telekom, France Telecom, KDD KDD Knowledge Discovery and Data Mining (International Conference)
KDD Knowledge Discovery in Databases
KDD Kokusai Denshin Denwa (Japan)
KDD Key Distribution Device , Mercury, Nokia, NORTEL, Telia, and Telmex, among the extensive list. Coherent is a fully accredited accredited
recognition by an appropriate authority that the performance of a particular institution has satisfied a prestated set of criteria.
cattle herds which have achieved a low level of reactors to, e.g. ISO (1) See ISO speed.
(2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. 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: http://www.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