Energis Calls with Coherent.LEESBURG, Va.--(BUSINESS WIRE)--Sept. 4, 1995--Energis, the UK's communications and information services See Information Systems. company, has recently installed the leading edge EC-7000 digital echo cancellers from Coherent Communications Systems. Representing the initial stage of Energis' network expansion, the high performance EC-7000 units were selected after extensive trials for implementation on Energis' international traffic to Canada. Energis built its 4,100 km SDH (Synchronous Digital Hierarchy) The European counterpart to SONET. See SONET. SDH - Synchronous Digital Hierarchy network by installing fibre optic cable Noun 1. fibre optic cable - a cable made of optical fibers that can transmit large amounts of information at the speed of light fiber optic cable transmission line, cable, line - a conductor for transmitting electrical or optical signals or electric power primarily along the NGC's electricity transmission infrastructure. Fibre optic cable was either wrapped around the existing earthwire, or the existing earthwire was replaced with a new composite earthwire containing the fibre pairs. Fibre installed in this way is much more secure from the threat of vandalism or fire, than buried cables. Excellent call quality, benefiting from state of the art 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. technology, is clearly a high priority as Bill Buck, Switch Interconnect Manager at Energis explains: "We assessed three different systems, basing our evaluation on several different criteria: performance with the NT switch, ETSI (European Telecommunications Standards Institute, Sophia Antipolis technical park, Nice, France, www.etsi.org) A non-profit membership organization founded in 1988, dedicated to standardizing information and communication technologies (ICT) throughout Europe. compatibility, the units' ability to fit in with our front-access racking systems and conformance to EMC (1) (EMC Corporation, Hopkinton, MA, www.emc.com) The leading supplier of storage products for midrange computers and mainframes. Founded in 1979 by Richard J. Egan and Roger Marino, EMC has developed advanced storage and retrieval technologies for the world's largest companies. screening regulations. The Coherent EC-7000 provided the best match to our requirements. The provision of comprehensive self-test facilities will, we believe, be extremely useful in maintaining peak network efficiency." Further expansion of the echo cancellation element is planned in the near future, involving the establishment of Energis' new calling card platform on the national network. The Coherent EC-7000 represents a state of the art echo cancellation platform, based on Coherent's own 5th generation VLSI VLSI: see integrated circuit. (1) (Very Large Scale Integration) Between 100,000 and one million transistors on a chip. See SSI, MSI, LSI and ULSI. (2) (VLSI Technology, Inc., Tempe, AZ, www.semiconductors. 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. to provide fast convergence time with exceptional stability. Separate processors handle the alarm, configuration and communications functions - facilitating fast alarm responses and menu-assisted set-ups via a hand-held unit, network management system or remote PC. The EC-7000 also provides optimised performance for facsimile transmission, and is available with Coherent's range of application-specific software. Amongst the ancillary software line-up is the Audio+TM technology, designed to provide voice enhancement within digital cellular networks. Coherent Communications Systems Corporation is a worldwide 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 commercial telecommunications companies and network operators, including AT&T Wireless, Cellular One, British Telecom, Nokia, Telia, Mercury, Cable & Wireless, Telmex, StrataCom, Deutsche Bundespost Telekom and France Telecom among the extensive list. Coherent is a registered 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 achieving standards of excellence across the whole of its operation. - Coherent at Telecom 95, Geneva Geneva, canton and city, Switzerland Geneva (jənē`və), Fr. Genève, canton (1990 pop. 373,019), 109 sq mi (282 sq km), SW Switzerland, surrounding the southwest tip of the Lake of Geneva. Coherent Communications Systems is exhibiting on Stand No: 1300 in the USA Pavilion at Telecom 95, Geneva, this October. It will be demonstrating its full range of leading edge digital echo cancellation products, plus its innovative application- specific software solutions designed to provide enhanced network functionality. -0- Note to editors: the above text is available via email. Please send us a message: to "saxford@pavilion.co.uk" indicating the date and name of the release you wish to receive. CONTACT: Coherent Communications Corp., Leesburg Diane McClelland, 703/729-6400, ext.311 Georgina Garrett at Garrett Axford 44 1273 441200 |
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