Symmetricom Network Synchronization Expert Featured Speaker at TelecomNEXT 2006

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Chief technologist Dr. Kishan Shenoi will present on the need for network time synchronization on Monday, March 20, 2006 at TelecomNEXT in Las Vegas.

The Fundamental Need for Synchronization at the Analog-Digital Boundary

Symmetricom, Inc. (NASDAQ: SYMM), a worldwide leader in precise time and frequency products and services, today announced that Dr. Kishan Shenoi, Symmetricom chief technologist, R&D, will be presenting “The Fundamental Need for Synchronization at the Analog-Digital Boundary” as part of the Network Test & Monitoring Track at TelecomNEXT 2006, on Monday, March 20, 2006 at 11:00 a.m. in Las Vegas. TelecomNEXT replaces SUPERCOMM® as the U.S. Telecommunication’s annual industry show.

WHO: Dr. Kishan Shenoi, Symmetricom chief technologist, R&D

WHAT: Presentation: “The Fundamental Need for Synchronization at the Analog-Digital Boundary” at TelecomNEXT 2006

WHEN: Monday, March 20, 2006 at 11:00 a.m.

WHERE: The Mandalay Bay Resort and Convention Center, Las Vegas, NV

Dr. Shenoi has extensive experience in digital signal processing, telecommunications systems and network synchronization. Prior to joining Symmetricom in 1992, he worked for DSC Communications Corp. and ITT Advanced Technology Center, where he was responsible for innovations in several product areas, including transmultiplexers, voice compression devices and echo cancellers. Dr. Shenoi has more than 20 patents and has written for more than 20 different technical publications. He holds a Ph.D. in Electrical Engineering from Stanford University, an M.S. from Columbia University and a B.Tech from the Indian Institute of Technology, New Delhi, India.

Dr. Shenoi will discuss the fact that the primary information transferred between human beings over a telecommunication network is inherently analog in nature, and, in order to carry this information over a digital network, analog-to-digital conversion and digital-to-analog conversion techniques are required. The legacy telephone network is also adept at transporting voice-band (analog) communication that may actually be between machines (modems). There is a fundamental need for synchronizing the conversion clocks in order to maintain a high level of perceptual and actual quality. A frequency offset manifests itself as a phenomena that is given many names; pitch modification effect, Doppler and cranking are three (similar) phenomena that are the result of, or can be modeled as, a frequency offset between source and destination. The presentation provides a theoretical basis for analyzing this frequency offset and describes the potential impact on service quality in three areas – wireless communications, reliable voice-band data transmission, and seamless delivery of high-quality video services.

Symmetricom will be represented at TelecomNEXT by Walker and Associates, Inc., a premier distributor of Symmetricom precise timing and synchronization network products, in booth #1739. Recognizing the dramatic changes in today’s integrated communications market, TelecomNEXT, taking place March 19-23, 2006, fully reflects the industry’s continuing evolution and will bring together the most dynamic, talented and innovative players of the digital age. For more information, visit

About Walker and Associates, Inc.

Walker and Associates is a premier distributor with over 35 years experience in telecommunications. Located in Welcome, N.C., Walker is a certified woman-owned company that provides world-class supply chain management, custom kitting, quality installation, expert integration, engineering, custom cable assemblies, applied inventory management and unsurpassed service to the US telecommunication service provider market. Learn more about Walker and Associates at

About Symmetricom, Inc.

As a worldwide leader in precise time and frequency products and services, Symmetricom provides “Perfect Timing” to customers around the world, including communication service providers, network equipment manufacturers, U.S. Department of Defense (DOD), aerospace contractors, enterprises, governments and research facilities. Since 1985, the company’s timing, frequency and synchronization solutions have helped define the world’s standards, delivering precision, reliability and efficiency to wireless and wireline networks, instrumentation and testing applications and network time management. Deployed in more than 90 countries, instrumentation products include atomic clocks, cesium and rubidium standards, VME, VXI, crystal oscillators, Bus Timing, PCI cards and Global Positioning System (GPS) solutions for instrumentation applications, alphanumeric displays, as well as network timeservers for Network Time Protocol (NTP) synchronization and time synchronization solutions. In 2002, Symmetricom acquired TrueTime and Datum, enhancing its position in the world time and frequency markets. Symmetricom is based in San Jose, Calif., with offices worldwide. For more information, visit


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