Terrestrial Trunked Radio (TETRA) has been developed by industryexperts alongside the European Telecommunications Standards Institute (ETSI) and has emerged as the unchallenged standard for the most demanding and professional users of radio communications worldwide.
TETRA technology brings new outstanding features to mobile communications, by combining the features of mobile cellular phones with fast data communications and the workgroup capabilities of PMR. All communications over TETRA are reassuringly private, secure and robust. The fully digital technology provides consistent and low noise voice quality. Further the TETRA technology is inherently efficient in the way it uses the frequency spectrum.