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Symmetricom and Nokia Siemens Validate IEEE 1588v2 (PTP) Over Multiprotocol Label Switching (MPLS) Networks at Carrier Ethernet World Congress

September 22, 2008

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 announced its TimeProvider(TM) 5000, the industry’s first carrier-class IEEE 1588v2 grand master clock, successfully interoperated with Nokia Siemens Networks’ Timing over Packet solution over a Multiprotocol Label Switching (MPLS) Network at the 4th Multi-Vendor Carrier Ethernet World Congress (CEWC) Interoperability Showcase, September 22-26, 2008 in Berlin, Germany organized by EANTC. In April, Nokia Siemens Networks introduced the industry’s first open standard Timing over Packet solution that incorporates the TimeProvider 5000 to synchronize base stations over packet-based Ethernet backhaul networks.

“TimeProvider 5000 enables Nokia Siemens Networks’ customers to accelerate their migration from TDM to Ethernet backhaul resulting in cost savings while simultaneously boosting network capacity to handle bandwidth hungry applications like voice, video and music downloads,” commented Mike Vizzi, senior product manager at Symmetricom. “Our success at the Multi-Vendor CEWC Interoperability Showcase demonstrates that running PTP over MPLS Layer 2 networks has moved from ‘proof-of-concept’ to the ‘practical deployment’ stage.”

In the Timing over Packet solution, Symmetricom’s TimeProvider 5000 distributes a network reference clock to a large number of PTPv2-enabled NSN base stations. The base station’s ability to synchronize its frequency based on the reference received from the TimeProvider 5000 is critical to maintaining service provider Service Level Agreements (SLAs), minimizing service disruptions and eliminating dropped calls. Timing over Packet is an open and future proof solution based on the IEEE 1588 version 2 standard. It addresses the synchronization requirements of both today as well as forthcoming 3GPP Long Term Evolution (LTE) wireless networks. The synchronization of base stations is a critical building block for mobile backhaul networks.

“This is the first, complete, live demonstration of Nokia Siemens Network’s proposition for mobile backhaul over Carrier Ethernet, including all elements in the network chain,” commented Dirk Lindemeier, responsible for mobile backhaul solutions at Nokia Siemens Networks. “More remarkably, it is the first time we have demonstrated a complete solution for packet based synchronization working live over a multi-vendor Carrier Ethernet network. We are pleased to have teamed with Symmetricom for the critical synchronization component using their TimeProvider 5000, a carrier-class IEEE 1588v.2 grand master clock.”

The live event at IIR’s Carrier Ethernet World Congress included a network of more than 100 leading-edge systems and provided proof-of-concept for network operators who want to migrate and utilize next generation Carrier Ethernet services. A 20-page white paper with detailed findings is available for download at http://www.eantc.com/cewc2008.

The Carrier Ethernet interoperability event at the Carrier Ethernet World Congress 2008 is organized by the European Advanced Networking Test Center (EANTC). CEWC is the largest conference and exhibition for the Ethernet network and services industry. For more information on CEWC, visit: http://www.carrierethernetworld.com.

About EANTC

The European Advanced Networking Test Center (EANTC) offers vendor-neutral consultancy and test facilities for network equipment manufacturers, service providers and enterprise customers. Primary business areas include interoperability, conformance and performance testing for Carrier Ethernet, IP/MPLS and Triple Play technologies and applications. For more information, contact Carsten Rossenhoevel, Managing Director, at +49.30.3180595-0 or via email at cross@eantc.com. http://www.eantc.com

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.




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