Accedian Networks participates in Symmetricom’s SyncWorld™ Ecosystem Program to support precise timing and synchronization requirements for 4G LTE deployments.

Light Reading Mobile Backhaul Summit, New York, NY, June 21, 2011 - Accedian Networks — the number one provider of High Performance Service Assurance™ solutions for Carrier Ethernet mobile backhaul networks, and Symmetricom®, Inc. (NASDAQ:SYMM) – a worldwide leader in precision time and frequency technologies, today announced Accedian’s participation in Symmetricom’s SyncWorld™ Ecosystem Program. The program was launched earlier this year to support precise timing and synchronization requirements for 4G LTE deployments that ensure seamless integration for service provider networks.

To qualify as a member of SyncWorld, Accedian Networks conducted detailed interoperability testing to validate synchronization distribution scenarios leveraging Symmetricom’s carrier-class Timesource® 3000 NTP server as the Accedian NTP client in its High Performance Service Assurance platform consisting of the EtherNID^®, MetroNID^® and MetroNODE 10GE^™ demarcation and OAM aggregation devices.

“Accurate timing and precise synchronization in mobile backhaul networks is critical to measuring and maintaining QoS and performance as mobile users travel between cell sites,” said Craig Easley, V.P. of Marketing and Product Management at Accedian Networks. “By combining Symmetricom’s world-leading precision time and frequency technologies with Accedian’s Ethernet demarcation devices, we can jointly deliver a fully-interoperable solution that includes the timing and synchronization services required to support the rapid deployment of 4G LTE networks.”

“One-way delay measurement relies on carrier grade synchronization,” said Manish Gupta, vice president marketing at Symmetricom. “We’re delighted to welcome Accedian Networks to SyncWorld so operators can benefit from these performance metrics using many synchronization technologies including NTP, GPS, SyncE and IEEE 1588.”

About Symmetricom, Inc.
Symmetricom (NASDAQ:SYMM), a world leader in precise time solutions, sets the world's standard for time. The company generates, distributes and applies precise time for the communications, aerospace/defense, IT infrastructure and metrology industries. Symmetricom's customers, from communications service providers and network equipment manufacturers to governments and their suppliers worldwide, are able to build more reliable networks and systems by using the company's advanced timing technologies, atomic clocks, services and solutions. All products support today's precise timing standards, including GPS-based timing, IEEE 1588 (PTP), Network Time Protocol (NTP), Synchronous Ethernet and DOCSIS® timing. Symmetricom is based in San Jose, Calif., with offices worldwide. For more information, visit: www.symmetricom.com.

For more information on the SyncWorld™ Ecosystem Program, visit:
www.symmetricom.com/company/syncworld/

About Accedian Networks
Founded in 2004, Accedian Networks™ is an industry-leading provider of High Performance Service Assurance^™ solutions for Carrier Ethernet and IP networks. Today, the Company is the number one provider of performance assurance solutions for Carrier Ethernet backhaul networks in North America with an installed base of over 40,000 cell sites in 2010, and 70,000 platforms sold worldwide. The Company’s hardware-based EtherNID^® , MetroNID^® and MetroNODE 10GE^™ demarcation and OAM aggregation devices also provide real-world service creation and high-speed, high-performance service assurance for Ethernet business, wholesale access, and carrier exchange services. These solutions—which far outperform more costly switches, routers and test equipment— enable service providers to establish end-to-end, standards-based OAM over converged multi-technology and multi-provider networks, with value-added services backed by assured SLAs. Accedian’s platform is deployed by a global customer base that includes telecommunications providers, cable MSOs and mobile operators offering carrier-grade, packet-based applications. A privately held company, Accedian Networks is headquartered in Montreal, Canada, with regional offices in the U.S., Europe, Latin America, Middle East and Asia. For additional information, please visit: www.accedian.com or call 1-866-685-8181 or +1 (514) 331-6181.