Integrated Services Digital Network (ISDN) - Harmonized Programmable Communication Interface (HPCI) for ISDN (Endorsement of the English version ETS 300838:1998 as German)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Performance data measurements (Endorsement of the English version ETS 300615:1996-08 as German standard)
Edition 2001-04

Telecommunications security - Integrated Services Digital Network (ISDN) - Confidentiality system for audiovisual services (Endorsement of the English version ETS 300840:1998 as German standard)
Edition 1999-06

Digital Video Broadcasting (DVB) - Subtitling systems (Endorsement of the English version EN 300 743 V1.6.1 (2018-10) as a German standard)
Edition 2019-04

Digital Video Broadcasting (DVB) - TTML subtitling systems (Endorsement of the English version EN 303 560 V1.1.1 (2018-05) as a German standard))
Edition 2018-10

Integrated Services Digital Network (ISDN) - Specification of the Packet Handler access point Interface (PHI) (Endorsement of the English version ETS 300099:1998 as German standard)
Edition 2000-06

Digital Video Broadcasting (DVB) - DVB interaction channel for cable TV distribution systems (CATV) (Endorsement of the English version ETS 300800:1998 as German standard)
Edition 2000-04

Television systems - Enhanced 625-line Phased Alternative Line (PAL) television - PALplus (Endorsement of the English version ETS 300731:1997 as German standard)
Edition 2000-04

Terminal Equipment (TE) - Videotex presentation layer protocol - Videotex presentation layer data syntax (Endorsement of the English version ETS 300072:1990 + A1:1996 as German standard)
Edition 2000-09

Digital cellular telecommunications system (Phase 2) - International Mobile station Equipment Identities (IMEI) (Endorsement of the English version ETS 300508:2000 as German standard)
Edition 2000-12