Digital Trunked Radio Systems (DTRS) is a communication system that uses a central controlling system to efficiently allocate frequency resources to a group of radio users, while using repeater stations to enhance the signal quality and the available channels automatically assigned to the handsets.

DTRS offers a highly secure encrypted, crystal clear quality voice service, which is an optimal alternative for group communication, and can be used for collaboration (many-to-many), commanding or broadcasting (one-to many) among the users. Other value-added services are also available to support the unique requirements in each business segment, such as petrochemical, electricity power plants, security services, logistic, insurance companies, government sections.

The Digital Trunked Radio Systems (DTRS) is a service by National Telecom Public Company (NT), based on Terrestrial Trunked Radio (TETRA) standard of European Telecommunications Standards Institute (ETSI).