Integrated Sevices Digital Network (ISDN); 3,1 kHz telephony teleservice; attachment requirements for handset terminals; english version ETS 300085:1990
Edition 1992-02

Integrated Services Digital Network (ISDN); telephony 3,1 kHz teleservice; service description; english version ETS 300111:1992
Edition 1993-04

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 - Videotelephone systems and terminal equipment operating on one or two 64 kbit/s channels; English version ETS 300145:1996
Edition 1996-08

Integrated Services Digital Network (ISDN) - Telephony 7 kHz teleservice - Service description; English version ETS 300263:1994
Edition 1994-11

Integrated Services Digital Network (ISDN) - Videotelephony teleservice - Service description; English version ETS 300264:1994
Edition 1994-11

Telephony for hearing impaired people - Inductive coupling of telephone earphones to hearing aids; English version ETS 300381:1994
Edition 1995-09

Terminal Equipment (TE) - Telephony for hearing impaired people - Characteristics of telephone sets that provide additional receiving amplification for the benefit of the hearing impaired; English version ETS 300488:1996
Edition 1996-08

European digital cellular telecommunications system (phase 2) - Signalling requirements on interworking between the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) and the Public Land Mobile Network (PLMN); English version ETS 300600:1995
Edition 1995-08

Human Factors (HF) - Assignment of alphabetic letters to digits on standard telephone keypad arrays; English version ETS 300640:1996
Edition 1997-04