RF characteristics of MAC AM-VSB cable receivers; german version EN 50080:1991
Edition 1992-01

European digital cellular telecommunications system (Phase 2) - Discontinuous Reception (DRX) in the GSM system; English version ETS 300531:1994
Edition 1995-01

European digital cellular telecommunications system (Phase 2) - Advice of Charge (AoC) supplementary services - Stage 2; English version ETS 300547:1995
Edition 1995-09

Frame relay services - Part 2: Integrated Services Digital Network (ISDN); frame relay bearer service; service definition; English version ETS 300399-2:1995
Edition 1995-10

European digital cellular telecommunications system - Half rate speech - Part 3: Substitution and muting of lost frames for half rate speech traffic channels; English version ETS 300581-3:1995
Edition 1996-07

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol - Calling Line Identification Presentation (CLIP) supplementary service - Part 1: Protocol specification (ITU-T Recommendation Q.2951, clause 3 (1995), modified); English version ETS 300663-1:1996
Edition 1997-11

European digital cellular telecommunications system (Phase 2) - Part 5: Discontinuous Transmission (DTX) for full rate speech traffic channels; English version ETS 300580-5:1994
Edition 1995-01

European digital cellular telecommunications system (Phase 2) - Part 1: Base Station System-Mobile-services Switching Centre (BSS-MSC) interface; general aspects; English version ETS 300587-1:1994
Edition 1995-01

Radio broadcasting systems - Very High Frequency (VHF), frequency modulated, sound broadcasting transmitters; English version ETS 300384:1995
Edition 1995-05

Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 21: List of Properties (LOP) of automated valves for electronic data exchange - Generic structures (IEC 61987-21:2015); German version EN 61987-21:2016
Edition 2016-07