Terrestrial trunked radio (TETRA) is the modern digital private mobile radio (PMR) and public access mobile radio (PAMR) technology. It has become the leading industry standard for digital professional communications, developed by ETSI and promoted by the TETRA Association. TETRA has become the first choice for all major segments for the market Police, Ambulance, Fire, Security Services, Transport, oil & gas and industry over the time.

TETRA supports fast call set-up time, group communication support, direct mode operation between radios, packet data and circuit data transfer services, frequency economy and security features. The much lower frequency used in TETRA gives longer range, which in turn permits very high levels of geographic coverage with a smaller number of transmitters, thus cutting infrastructure costs.

Al Otaiba Oil Field & Engg. Services is the leading developers of TETRA technology leading the way in R&D and innovative applications and enhancements to the standard.