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) - Telephony 7 kHz teleservice - Functional capabilities and information flows; English version ETS 300265:1994
Edition 1994-10

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

Broadband Integrated Services Digital Network (B-ISDN) - Signalling system No. 7 - Interworking between Broadband ISDN User Part (B-ISUP) and narrowband ISDN User Part (ISUP) (ITU-T Q.2660:1995, modified); English version ETS 300496:1997
Edition 1998-02

Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No. 7 - B-ISDN User Part (B-ISUP) Capability Set 1 (CS1) - Supplementary services (ITU-T Q.2730:1995, modified); English version ETS 300657:1997
Edition 1998-02

Human Factors (HF) - Telephone Prepayment Cards - Tactile Identifier; English version ETS 300767:1997
Edition 1998-05

Satellite Earth Stations and Systems (SES) - Receive-only Very Small Aperture Terminals (VSATs) operating in the 4 GHz frequency band; English version ETS 300333:1997
Edition 1998-05

Digital Video Broadcasting (DVB) - Interaction channel through Public Switched Telecommunications Network (PSTN)/Integrated Services Digital Network (ISDN); English version ETS 300801:1997
Edition 1998-06

Integrated Services Digital Network (ISDN); conference call, add-on (CONF) supplementary service; functional capabilities and information flows; English version ETS 300184:1993 + Corrigendum September 1993
Edition 1994-04

Accessibility requirements for ICT products and services; English version EN 301549 V3.2.1 (2021-03); Text in German, only on CD-ROM
Edition 2022-06