Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 1: General design (Endorsement of the English version EN 300 392-3-1 V1.4.1 (2015-12) as German standard)
Edition 2016-04

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 2: Additional Network Feature Individual Call (ANF-ISIIC) (Endorsement of the English version EN 300392-3-2 V1.4.1 (2010-08) as German standard)
Edition 2011-04

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 3: Additional Network Feature Group Call (ANF-ISIGC) (Endorsement of the English version EN 300 392-3-3 V1.4.1 (2017-12) as German standard)
Edition 2018-04

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 4: Additional Network Feature Short Data Service (ANF-ISISDS) (Endorsement of the English version EN 300392-3-4 V1.3.1 (2010-08) as German standard)
Edition 2011-04

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 5: Additional Network Feature for Mobility Management (ANF-ISIMM) (Endorsement of the English version EN 300 392-3-5 V1.5.1 (2016-06) as German standard)
Edition 2016-11

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 8: Generic Speech Format Implementation (Endorsement of the English version EN 300 392-3-8 V1.4.1 (2020-04) as a German standard)
Edition 2020-07

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 9: Transport layer independent, General design (Endorsement of the English version EN 300 392-3-9 V1.2.1 (2020-04) as a German standard)
Edition 2020-07

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 10: General design, PSS1 over E.1 (Endorsement of the English version EN 300 392-3-10 V1.2.1 (2020-04) as a German standard)
Edition 2020-07

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 11: General design, SIP/IP (Endorsement of the English version EN 300 392-3-11 V1.2.1 (2020-04) as a German standard)
Edition 2020-07

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the Inter-System Interface (ISI) - Sub-part 12: Transport layer independent Additional Network Feature Individual Call (ANF-ISIIC) (Endorsement of the English version EN 300 392-3-12 V1.2.1 (2020-04) as a German standard)
Edition 2020-07