DIN EN 300392-9:2011 Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 9: General requirements for supplementary services (Endorsement of the English version EN 300392-9 V1.4.1 (2010-08) as German standard)
2020DIN EN 300392-9:2020-07 Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 9: General requirements for supplementary services (Endorsement of the English version EN 300 392-9 V1.7.1 (2020-04) as a German standard) / Note: DIN ETS standards collection*Endorsement...
2012DIN EN 300392-9:2012 Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 9: General requirements for supplementary services (Endorsement of the English version EN 300 392-9 V1.5.1 (2012-04) as German standard)
2011DIN EN 300392-9:2011 Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 9: General requirements for supplementary services (Endorsement of the English version EN 300392-9 V1.4.1 (2010-08) as German standard)
2008DIN EN 300392-9:2008 Terrestrial Trunked Radio (TETRA) - Voice plus Date (V+D) - Part 9: General requirements for supplementary services (Endorsement of the English version EN 300392-9 V1.3.2 (2008-08) as German standard)