Symmetricom, Inc. provides timekeeping technologies, instruments, and solutions worldwide. It offers timekeeping in GPS satellites, national time references, and national power grids, as well as critical military and civilian networks that enable data, voice, mobile and video networks, and services. The company operates in two segments, Communications, and Government and Enterprise. The Communications segment provides timing technologies and services for communications infrastructure. It offers primary reference sources; edge clocks and distribution products for synchronization outside the network core; Building Integrated Timing Supply and Sync Supply unit for the central office; the PackeTime product suite; Synchronous Ethernet; Data Over Cable Service Interface Specifications timing interface systems; network management and monitoring software; and embedded hardware and software solutions for integration with various elements of the communications ecosystem, such as silicon, routers, switches, microwave backhaul, and base stations. The Government and Enterprise segment provides time technology products comprising timescale clock sources; network time servers; network time displays; time code generators; bus level timing cards; primary reference standards, which include cesium oscillator standards; high stability masers; chip-scale atomic clocks; ruggedized crystal oscillators; and custom time and frequency systems. The company sells its products through sales force, distributors, systems integrators, and manufacturer sales representatives, as well as telesales and Internet. Symmetricom, Inc. serves communications service providers; network equipment manufacturers of wireless base stations, routers, and aggregation systems; silicon suppliers; space/defense/avionics; power utility infrastructure; IT infrastructure; underwater exploration and navigation; and science and metrology markets. The company was founded in 1956 and is headquartered in San Jose, California.