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

Integrated Services Digital Network (ISDN) - Autographic conference teleservice - Service description; English version ETS 300675:1996
Edition 1997-11

Integrated Services Digital Network (ISDN) - Videoconference teleservice - Service description; English version ETS 300678:1996
Edition 1997-11

Integrated Services Digital Network (ISDN) - Signalling interworking specification for ISDN User Part (ISUP) version 1; English version ETS 300343:1994
Edition 1995-01

Integrated Services Digital Network (ISDN) - Signalling System No. 7 - Signalling interworking specification for ISDN User Part (ISUP) version 2; English version ETS 300360:1995
Edition 1995-11

Public Switched Telephone Network (PSTN) - Basic Category I and Category II specifications for modems standardized for use on the PSTN; English version ETS 300114:1996
Edition 1997-08

Public transport - Reference data model - Part 5: Fare management; English version EN 12896-5:2019, only on CD-ROM
Edition 2020-01

Postal services - Interface and data transfer format for capturing postal automation events IDT-PAE; German version CEN/TS 16919:2016
Edition 2018-11

Methods of measurement for equipment used in digital microwave radio transmission systems. Measurements on terrestrial radio-relay systems. Cross-polarization interference canceller
Edition 1997-07-15

Methods of measurement for equipment used in digital microwave radio transmission systems. Part 2: Measurements on terrestrial radio-relay systems. Section 11: Cross-polarization interference canceller
Edition 1997-01