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Spirent Communications Introduces Distributed Abacus IP Telephony Rollout Platform.

SAN JOSE San Jose, city, United States
San Jose (sănəzā`, săn hōzā`), city (1990 pop. 782,248), seat of Santa Clara co., W central Calif.; founded 1777, inc. 1850.
, Calif. -- Single System Linking Distributed, Live Network Test Devices Enables IP and Hybrid IP/PSTN Call Quality Assessment Before VoIP Service Launches

Spirent Communications(TM) (NYSE NYSE

See: New York Stock Exchange
:SPM SPM - Sequential Parlog Machine ) (LSE LSE - Language Sensitive Editor :SPT (Sectors Per Track) The number of sectors in one track. ) today announced availability of the Distributed Abacus IP Telephony The two-way transmission of voice over a packet-switched IP network, which is part of the TCP/IP protocol suite. The terms "IP telephony" and "voice over IP" (VoIP) are synonymous.  Rollout Platform designed to assess and validate signaling performance and call quality in pre-production networks. Spirent Communications is a worldwide provider of performance analysis and service assurance systems for next-generation network technologies.

Carriers using Distributed Abacus can confidently introduce large-scale VoIP services by taking IP telephony testing beyond the lab. By emulating real-world traffic from multiple points on the network, network operators, may avoid the risk of testing VoIP quality and performance with live customers.

Spirent's Distributed Abacus platform allows for thorough, rapid and centralized testing of service provider or enterprise pre-production networks, rather than consuming time and resources with site-by-site testing. Spirent's Distributed Abacus platform treats multiple Abacus IP Telephony test systems as a single 'virtual' platform for testing IP and hybrid IP/Public Switched Telephone Network (PSTN (Public Switched Telephone Network) The worldwide voice telephone network. Once only an analog system, the heart of most telephone networks today is all digital. In the U.S. ) networks. It provides network engineers with the ability to test the effectiveness of the network infrastructure in carrying voice traffic.

"For many carriers and enterprises, high quality IP communications A general term for networks that use the IP protocol for voice (VoIP) and video traffic. See IP telephony.  infrastructure is a core component of their competitive strategy," said Danny Klein, Communications Network The transmission channels interconnecting all client and server stations as well as all supporting hardware and software.  Infrastructure analyst, at The Yankee Group (the Yankee Group, Boston, MA, A major market research, analysis and consulting firm founded in 1970 by Howard Anderson. It provides general consulting and strategic planning in the computer and communications field. . "The ability to assure next-generation equipment's performance after the network deployment and before live service availability will prove critical to customer acceptance and loyalty."

Spirent's Distributed Abacus IP telephony Rollout Platform provides network statistics such as jitter A flicker or fluctuation in a transmission signal or display image. The term is used in several ways, but it always refers to some offset of time and space from the norm. For example, in a network transmission, jitter would be a bit arriving either ahead or behind a standard clock cycle , delay and packet Loss; call measurements statistics such as call setup time, percent of call completions, and call termination reason; and voice quality metrics such as MOS (1) (Metal Oxide Semiconductor) See MOSFET.

(2) (Mean Opinion Score) The quality of a digitized voice line. It is a subjective measurement that is derived entirely by people listening to the calls and scoring the results from
, PESQ PESQ Perceptual Evaluation of Speech Quality (ITU-T)  and R value. Spirent's Distributed Abacus can be used to test end-to-end or at any combination of IP and PSTN points on the network facilitating true converged network testing between various locations around a city, a country or around the Globe.

Spirent's Distributed Abacus unleashes the rich functionality of the market leading Abacus 5000 for use on the network and over distance. The Spirent Distributed Abacus solution is designed for the growing community of carriers and enterprises now engaging in early stages of IP and hybrid IP/PSTN telephony network deployments worldwide.

"By bringing Distributed Abacus to the market, we are putting hundreds of person-years of IP and PSTN testing experience and technology into the hands of our customers so they can successfully roll out IP telephony services" said Bahaa Moukadam, vice president, IP Telephony, for Spirent Communications. "Successful IP telephony service rollout is a key imperative for service providers and we are proud to be working closely with our customers to enable their business success."

Network operators can deploy Distributed Abacus as an IP telephony service rollout test system to determine what infrastructure changes are necessary to make the network ready for voice traffic. In addition, Spirent offers an IP Telephony Network Assessment Service incorporating on-site Spirent Global Services experts, an initial assessment of the customer's requirements, customized network analysis, corrective recommendations and, if necessary, a follow-on service with in-depth testing of specific problems. Spirent's IP Telephony Network Assessment Service can let Spirent assist with network analysis, freeing customer resources to concentrate on the network deployment.

About Spirent Communications

Spirent Communications ( is a global provider of integrated performance analysis and service assurance systems that enable the development and deployment of next-generation networking technology such as Internet Telephony, broadband services, 3G wireless, global navigation satellite systems, and network security equipment. Spirent's solutions are used by more than 1,500 customers in 30 countries, including the world's largest equipment manufacturers, service providers, enterprises and governments. Based in Rockville, Maryland, Spirent Communications reported 2004 revenue of $460 million and has 1,700 employees worldwide. The company is the largest business group of Spirent plc, traded on the London and New York Stock Exchanges New York Stock Exchange (NYSE)

World's largest marketplace for securities. The exchange began as an informal meeting of 24 men in 1792 on what is now Wall Street in New York City.
 (LSE:SPT) (NYSE:SPM) (CUSIP number CUSIP Number

An identification number assigned to all stocks and registered bonds. The Committee on Uniform Securities Identification Procedures (CUSIP) oversees the entire CUSIP system.

This system is used in the U.S. and Canada.
: 84856M209). Spirent Communications' sales to the United States government are made through Spirent Federal Systems.

Note to Editors: Spring VON 2005 Booth #1015

Spirent, Spirent Communications and the Spirent logo are trademarks of Spirent plc. All other trademarks or registered trademarks are held by their respective companies. All rights reserved.

This press release may contain forward-looking statements that are based on current expectations or beliefs, as well as assumptions about future events. By their nature, forward-looking statements are inherently predictive, speculative and involve risk and uncertainty because they relate to events and depend on circumstances that will occur in the future. You should not place undue reliance on these forward-looking statements, which are not a guarantee of future performance and are subject to factors that could cause Spirent's actual results to differ materially from those expressed or implied by these statements. These risks include the risks described from time to time in Spirent's SEC periodic reports and filings. We undertake no obligation to update our forward-looking statements, whether as a result of new information, future events or otherwise.
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Publication:Business Wire
Geographic Code:4EUUK
Date:Mar 8, 2005
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