Symmetricom Announces TimeMAX Synchronization Sub-System for WiMAX Cellular Base Stations and Broadcast Equipment

GPS-Disciplined Time and Frequency Reference Platform Optimized for WiMAX

SAN JOSE, Calif. — March 28, 2007 — Symmetricom, Inc. (NASDAQ: SYMM), a worldwide leader in precise time and frequency products and services, today announced the introduction of TimeMAX™, a series of cost-effective synchronization sub-systems designed to be integrated into existing communications and transmission equipment. TimeMAX is a flexible GPS-disciplined time and frequency platform optimized for WiMAX and other applications that require precise frequency or time.

“We have developed this portfolio of sub-system products in response to demand from our network service provider customers as they build out a wide range of latency and jitter-sensitive applications such as voice, real time video and gaming,” said Rajen Datta, senior director, product marketing for Symmetricom. “These applications and the deployment of new technologies such as WiMAX base stations, DVB transmission equipment and new UMTS base stations with IP-based backhaul, are driving the need for end-to-end network synchronization, pushing precise timing and frequency needs beyond base stations and central offices into areas throughout the network.”

Mobile WiMAX (802.16e) requires both frequency and time synchronization. Mobile WiMAX will need to support full handoffs and GPS is the recommended source for synchronization for WiMAX base stations. TimeMAX is designed to meet these synchronization requirements with its compact size, simple interface, and optimized reliability.

Application areas include:

• WiMAX Mobile Base Station Timing

• Broadcast (DVB, DVB-H, DAB, DTV)

• Satellite Communications Equipment

• Cellular Base Station (CDMA, TDMA, UMTS (for GPS based timing))

Key features of the TimeMAX precision frequency and timing system include:

• Provides 10MHz and 1PPS synchronized to GPS

• Availability in three different grades with different holdover and phase noise specifications

• “Wide Range of Performance” makes it suitable as a key technology block for different applications

Availability

The new TimeMAX subsystem will be available for evaluation in Q2 2007. For more information visit: ngn.symmetricom.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.