Integrated Services Digital Network (ISDN) - Facsimile group 4 class 1 equipment on the ISDN - End-to-end protocol tests (Interconnection capability testing); English version ETS 300155:1995
Edition 1995-08

Broadband Integrated Services Digital Network (B-ISDN) - Asynchronous Transfer Mode (ATM) Adaptation Layer (AAL) specification; type 3/4; English version ETS 300349:1995
Edition 1995-11

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

Integrated Services Digital Network (ISDN); syntax-based videotex lower layers protocols for ISDN packet mode (CCITT Recommendation X.31 case A and case B); English version ETS 300218:1993
Edition 1994-01

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

Generic specification: Monolithic integrated circuits; German version EN 190000:1995
Edition 1996-05

Integrated Services Digital Network (ISDN); support of CCITT recommendation X.21, X.21bis and X.20bis based Data Terminal Equipments (DTEs) by an ISDN; synchronous and asynchronous terminal adaption functions; english version ETS 300103:1990
Edition 1992-02

OPC Unified Architecture - Part 5: Information Model (IEC 62541-5:2020); English version EN IEC 62541-5:2020
Edition 2021-08

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Premium Rate (PRM) service; service description; English version ETS 300712:1997
Edition 1997-12

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Televoting (VOT) service; service description; English version ETS 300713:1997
Edition 1997-12