Electromagnetic compatibility and Radio spectrum Matters (ERM) - Enhanced Radio MEssage System (ERMES) - Part 6: Base station conformance specification; English version ETS 300133-6:1997
Edition 1998-12

Electromagnetic compatibility and Radio spectrum Matters (ERM) - Enhanced Radio MEssage System (ERMES) - Part 7: Operation and maintenance aspects; English version ETS 300133-7:1997
Edition 1998-12

Integrated Services Digital Network (ISDN); CCITT signalling system no. 7; Transaction Capabilities Application Part (TCAP); English version ETS 300134:1992
Edition 1993-07

Integrated Services Digital Network (ISDN); Closed User Group (CUG) supplementary service; service description; english version ETS 300136:1992
Edition 1992-12

Integrated Services Digital Network (ISDN); Closed User Group (CUG) supplementary service; functional capabilities and information flows; english version ETS 300137:1992
Edition 1992-12

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; service description; english version ETS 300139:1992
Edition 1992-12

Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; functional capabilities and information flows; english version ETS 300140:1992
Edition 1992-12

Integrated Services Digital Network (ISDN) and other digital telecommunications networks - Line transmission of non-telephone signals - Video codec for audiovisual services at p×64 kbits [ITU-T Recommendation H.261 (1993), modified] (Endorsement of the English version ETS 300142:1998 as German standard)
Edition 2000-06

Integrated Services Digital Network (ISDN) - Audiovisual services - Inband signalling procedures for audiovisual terminals using digital channels up to 2048 kbit/s; English version ETS 300143:1994
Edition 1994-12

Integrated Services Digital Network (ISDN) - Audiovisual services - Inband signalling procedures for audiovisual terminals using digital channels up to 2048 kbit/s; English version ETS 300143:1994/A1:1996
Edition 1996-08