PUBLIC SAFETY COMMUNICATIONS
Terrestrial Trunked Radio
TETRA is a digital cellular trunked communication system designed by European public safety organizations and services in order to provide a unique platform for their shared communications. Technologically speaking, TETRA is similar to public land-based mobile systems (e.g. GSM), however, it was intended for specialized purposes. Due to the high scalability of the system, TETRA users are manifold, including government services and ministries, electrical power companies, the transportation and oil industries, public utility services, etc.