TETRA ...

• the future network for authorities with public safety duties
  such as police, fire department, ambulance services, government agencies & military.

or...

• as a local network
  for airports, energy supply companies & utilities.

TETRA as a fully digital system has a better transmission quality and makes more efficient use of the frequency spectrum in
contrast to conventional mobil communication standards. In addition to the transmission of voice communication, large amounts of data can also be sent to optimize the capacity of the radio channel.