Terrestrial Trunked Radio (TETRA) - Conformance testing specification - Part 4: Protocol testing specification for Direct Mode Operation (DMO); Sub-part 8: Test Suite Structure and test Purposes (TSS&TP) for Direct Mode Gateway (DM-GATE) (Endorsement of the English version ETS 300394-4-8:1999 as German standard)
Edition 2000-05

Terrestrial Trunked Radio (TETRA) - Packet Data Optimized (PDO) - Part 2: Air Interface (AI) (Endorsement of the English version ETS 300393-2:1999 as German standard)
Edition 2000-05

Terrestrial Trunked Radio (TETRA) - Packet Data Optimized (PDO) - Part 10: SDL model of Air Interface (AI) (Endorsement of the English version ETS 300393-10:1999 as German standard)
Edition 2000-05

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10: Supplementary services stage 1; Sub-part 3: Talking Party Identification (TPI) (Endorsement of the English version ETS 300392-10-3:1999 as German standard)
Edition 2000-05

Terristrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10: Supplementary services stage 1; Sub-part 23: Call completion on no reply (Endorsement of the English version ETS 300392-10-23:1999 as German standard)
Edition 2000-05

V interfaces at the digital Local Exchange (LE) - V5.1 interface for the support of Access Network (AN) - Part 7: Test Suite Structure and Test Purposes (TSS&TP) specification for the data link layer as German standard) (Endorsement of the English version ETS 300324-7:1999 as German standard)
Edition 2000-10

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 11: Supplementary services stage 2; Sub-part  23: Call Completion on No Reply (CCNR) (Endorsement of the English version ETS 300392-11-23:2000 as German standard)
Edition 2000-12

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3; Sub-part 7: Short Number Addressing (SNA) (Endorsement of the English version ETS 300392-12-7:2000 as German standard)
Edition 2000-12

Electromagnetic compatibility and Radio spectrum Matters (ERM) - Terrestrial Flight Telecommunications System (TFTS) - Part 2: Speech services, radio interface (Endorsement of the English version ETS 300326-2:1998-08 as German standard)
Edition 2001-02

Electromagnetic compatibility and Radio spectrum Matters (ERM) - Terrestrial Flight Telecommunications System (TFTS) - Part 1: Speech services, facilities and requirements (Endorsement of the English version ETS 300326-1:1998-08 as German standard)
Edition 2001-02