Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3 - Sub-part 21: Ambience Listening (AL) (Endorsement of the English version EN 300 392-12-21 V1.5.1 (2012-04) as German standard)
Edition 2014-09

Terrestrial Trunked Radio (TETRA) - Technical requirements for Direct Mode Operation (DMO) - Part 4: Type 1 repeater air interface (Endorsement of the English version EN 300396-4 V1.4.1 (2011-12) as German standard)
Edition 2012-07

Triggering messages for broadcast applications - Part 2: Transport methods (IEC 62297-2:2005); German version EN 62297-2:2005
Edition 2005-09

Triggering messages for broadcast applications - Part 1: Format (IEC 62297-1:2005); German version EN 62297-1:2005
Edition 2005-09

Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 6-1: Synchronization layer functions (Endorsement of the English version EN 300417-6-1 V 1.1.3 (1999-05) as German Standard)
Edition 2000-06

Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 3-2: Synchronous Transport Module N (STM-N) regenerator and multiplex section layer functions; implementation Conformance Statement (ICS) proforma specification (Endorsement of the English version EN 300417-3-2 V 1.1.4 (1999-05) as German Standard)
Edition 2000-06

Transmission and Multiplexing (TM) - Generic requirements for transport functionality of equipment - Part 2-2: Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) physical section layer functions; Implementation Conformance Statement (ICS) proforma specification (Endorsement of the English version EN 300417-2-2 V 1.1.4 (1999-05) as German Standard)
Edition 2000-06

Transmission and Multiplexing (TM) - Generic requirements for transport functionality of equipment - Part 1-2: General information about Implementation Conformance Statement (ICS) proforma (Endorsement of the English version EN 300417-1-2 V 1.1.3 (1999-05) as German Standard)
Edition 2000-06

Terrestrial Trunked Radio (TETRA) - Technical requirements for Direct Mode Operation (DMO) - Part 7: Type 2 repeater air interface (Endorsement of the English version EN 300396-7 V 1.2.1 (2000-12) as German Standard)
Edition 2002-03

Terrestrial Trunked Radio (TETRA) - Technical requirements for Direct Mode Operation (DMO) - Part 8: Protocol implementation; Conformance statement (PICS) proforma specification; Sub-part 4: Type 2 repeater air interface (AI) (Endorsement of the English version EN 300396-8-4 V 1.1.1 (2001-01) as German Standard)
Edition 2002-03