Symmetricom Releases DOCSIS DTI Planning and Deployment Guidelines for the Cable Industry: Critical Information Now Available to Help Cable Providers Understand the Impact of Reliable Timing and Synchronization on Triple Play Services

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Symmetricom, Inc. (NASDAQ: SYMM), a worldwide leader in precise time and frequency technologies that accelerate the deployment and enable the management of next generation networks, today unveiled a comprehensive set of materials designed to help multi-system operators (MSOs) improve the reliability of their DOCSIS (data over cable service interface specification) network environment. These materials include:

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    -- "Deploying Reliable DOCSIS Synchronization," a detailed guide for cable operators on deploying the DOCSIS Timing Interface (DTI) in their networks

-- iPod video presentation

-- Streaming Flash presentation

-- Audio podcast

To download Symmetricom's DOCSIS deployment materials or for more information, visit:

Symmetricom has released DOCSIS deployment materials to help cable providers utilize advanced timing and frequency technologies to ensure the consistent, reliable performance of new cable services, including voice, video and data offerings. These new services are placing increased demands on existing infrastructure, requiring state-of-the-art timing and synchronization solutions to maximize performance. Sub optimal synchronization results in packet loss, reduced throughput and poor Quality of Service (QoS), all leading to customer churn. Time and frequency synchronization solutions help maximize ROI from the existing infrastructure, increase network utilization and enable the deployment of more revenue generating applications.

Symmetricom announced the availability of the first DTI-compliant server qualified by Cable Television Laboratories, Inc. (CableLabs(R)), TimeCreator 1000, in January 2007.

About Symmetricom, Inc.

As a worldwide leader in precise time and frequency products and services, Symmetricom provides "Perfect Timing" to customers around the world. Since 1985, the company's solutions have helped define the world's time and frequency standards, delivering precision, reliability and efficiency to wireline and wireless networks, instrumentation and testing applications and network time management. Deployed in more than 90 countries, the company's synchronization solutions include primary reference sources, building integrated timing supplies (BITS), GPS timing receivers, time and frequency distribution systems, network time servers and ruggedized oscillators. Symmetricom also incorporates technologies including Universal Timing Interface (UTI), Network Time Protocol (NTP), Precision Time Protocol (IEEE 1588), and others supporting the world's migration to Next Generation Networks (NGN). Symmetricom is based in San Jose, Calif., with offices worldwide. For more information, visit

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Raychel Marcotte
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