Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10: Supplementary services stage 1 - Sub-part 12: Call Hold (HOLD) (Endorsement of the English version EN 300392-10-12 V1.3.1 (2004-02) as German standard)
Edition 2004-12

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3 - Sub-part 10: Priority Call (PC) (Endorsement of the English version EN 300392-12-10 V1.2.1 (2004-02) as German standard)
Edition 2004-12

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10: Supplementary services stage 1 - Sub-part 11: Call Waiting (CW) (Endorsement of the English version EN 300392-10-11 V1.3.1 (2004-01) as German standard)
Edition 2004-12

Terrestrial Trunked Radio (TETRA) - Conformance testing specification - Part 2: Protocol testing specification for Voice plus Data (V+D); Sub-part 1: Test suite structure and test purposes (Endorsement of the English version ETS 300394-2-1:1998 as German standard)
Edition 1999-07

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10: Supplementary services stage 1; Sub-part 9: Access priority (Endorsement of the English version ETS 300392-10-9:1999 as German Standard)
Edition 1999-12

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 4: Gateways basic operation; Sub-part 1: Public Switched Telephone Network (PSTN) (Endorsement of the English version ETS 300392-4-1:1999 as German standard)
Edition 1999-12

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 11: Supplementary services stage 2; Sub-part 9: Access priority (AP) (Endorsement of the English version ETS 300392-11-9:1998 as German standard)
Edition 1999-12

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3; Sub-part 9: Access priority (AP) (Endorsement of the English version ETS 300392-12-9:1998 as German standard)
Edition 1999-12

Terrestrial Trunked Radio (TETRA) - Conformance testing specification - Part 5: Security; Sub-part 1: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version ETS 300394-5-1:1999 as German standard)
Edition 1999-12

Terrestrial Trunked Radio (TETRA) - Conformance testing specification - Part 5: Security; Sub-part 3: Abstract Test Suite (ATS) (Endorsement of the English version ETS 300394-5-3:1999 as German standard)
Edition 1999-12