One of the advantages of TETRA is the integration of voice and data, allowing both critical control information and speech to be sent to and from the same radio terminal simultaneously. The TETRA standard was first released by ETSI in the mid-1990s, and was the first European standard for a digital trunked radio scheme intended to address the needs of business critical and mission critical users.įrom the outset, TETRA fulfilled many of the needs of the rail community and was adopted by several metros and tramways around the world for their communications requirements. Much has been written over the years to describe the success of TETRA in the transportation industry.
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