Symmetricom and Alliance for Telecommunications Industry Solutions (ATIS) Present Third Webinar in Precise Timing and Synchronization Series.

Free ATIS TechThink Webinar Focuses on Emerging Timing Standards, Protocols for Next Generation Network Infrastructure and Services - Tuesday, January 30, 2007

SAN JOSE, Calif. -- Symmetricom, Inc. (NASDAQ: SYMM), a worldwide leader in precise time and frequency products and services, today announced that the company will be presenting a free TechThink Webinar entitled "Evolution in Timing and Synchronization Technologies" along with the Alliance for Telecommunications Industry Solutions (ATIS) on Tuesday, January 30, 2007, 1:00 p.m. to 2:00 p.m. EST. The ATIS TechThink Webinar is the final in a series of three precise timing and synchronization Webinars and will focus on key emerging timing standards and protocols for Next Generation Network Infrastructure and Services.

WHO:     Moderator - John F. Bernhards, Vice President, Marketing &
         Public Relations at ATIS

         Featured Speakers - Laurent Montini, Systems Architect, SP
         Systems Development for Cisco Systems (NASDAQ: CSCO) and
         Jeremy Bennington, Business Development Manager for
         Symmetricom and active member of the ITU SG15 Synchronization
         Standards Group

WHAT:    ATIS TechThink Webinar presented by Symmetricom and ATIS,
         "Evolution in Timing and Synchronization Technologies"

WHEN:    Tuesday, January 30, 2007, 1:00 to 2:00 p.m. EST / 10:00 a.m.
         to 11:00 a.m. PST

WHERE:   To access more information on this Webinar, or to register,
         click the following URL: http://ngn.symmetricom.com/ATIS3/

Timing and synchronization and its effective implementation will continue to be a cornerstone of highly available networks for both legacy services as well as for emerging real-time services. Consistent and reliable timing will be essential for quality assurance, network performance, service availability and seamless interoperability across the diverse universe of network elements, service infrastructure and customer premise equipment. Timing and synchronization technologies are evolving to address new requirements for different types of services, network elements and devices.

The TechThink Webinar presentation will include:

* Emerging timing technologies and standards for Next Generation Networks

* How each technology works

* Key application scenarios

* Relative merits and demerits of each technology

* How to implement a timing infrastructure that serves these diverse needs through different technologies

John Bernhards has responsibility for membership development, marketing and public relations activities that bring support to the technical planning and standards development activities of the Alliance for Telecommunications Industry solutions (ATIS). Over 300 of the communications industry's leading service providers, equipment manufacturers, software companies and other industry stakeholders participate in ATIS standards committees and related activities for the purpose of prioritizing and defining the industry's technical and business requirements and creating market-driven standards.

Laurent Montini is currently in charge of timing and time distribution aspects in packet networks in the Cisco Development Organization. He participates in ITU SG15Q13 and IEEE1588 workgroups. Laurent joined Cisco in January 1997 with eight years of experience in local and wide area packet networks. Within Cisco his first role was as a systems engineer for academic and research community, working on technologies like ATM, IPv6, IP multicast, tag switching (forerunner of MPLS) or VoIP. Before joining the CDO SPSD team, he was a consulting engineer for six years, providing backbone and RAN transport for Mobile Service Providers, where he also began his involvement with synchronization.

Jeremy Bennington is responsible for business development of several next generation synchronization technologies and markets for Symmetricom. His work includes development of the new DOCSIS Timing Interface cable synchronization standard and several other synchronization technologies for the broader communication market including IEEE 1588, Synchronous Ethernet and the Universal Timing Interface. Over the past four years, he has served in several capacities for Symmetricom in the U.S., Europe and Asia, developing new product entries within the wireline, wireless and cable telecommunication markets. Mr. Bennington has also served as a member of Symmetricom's strategic working group and has taken active roles in industry standards bodies including contributing author of the CableLabs[R] M-CMTS DOCSIS Timing Interface, member of CableLabs' DOCSIS 3.0 specification team, contributing author of CableLabs Commercial Services Specification and a member of the ITU SG15 Synchronization Standards Group.

This is the third in a series of three Webinars. In the previous two, the role of timing in ensuring QoS for various real-time applications was discussed. The first Webinar, "The Vital Role of Synchronization and Timing in Next Generation Networks" was held on Thursday, November 9, 2006. The second Webinar, "Ensuring QoS Through Timing in Next Generation Networks: The Impact of Timing and Real Time Applications on Carrier Infrastructure" was held on Wednesday, December 6, 2006. The archives are available at: http://ngn.symmetricom.com/resource_center/webcasts.asp.

About ATIS

ATIS is a technical planning and standards development organization that is committed to rapidly developing and promoting technical and operations standards for the communications and related information technologies industry worldwide using a pragmatic, flexible and open approach. Participants from more than 350 communications companies are active in ATIS' 23 industry committees and Incubator Solutions Program. For more information, visit www.atis.org.

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 www.symmetricom.com.