European digital cellular telecommunications system (Phase 2) - Technical realisation of operator determined barring; English version ETS 300533:1994
Edition 1995-01

Integrated Services Digital Network (ISDN) - Freephone (FPH) supplementary service - Service description; English version ETS 300208:1996
Edition 1996-10

Private Integrated Services Network (PISN) - Cordless Terminal Mobility (CTM) - Call handling additional network features; service description; English version ETS 300694:1996
Edition 1996-12

European digital cellular telecommunications system (Phase 2) - Operator determined barring; English version ETS 300513:1994
Edition 1995-01

Integrated Services Digital Network (ISDN); advice of charge: charging information at call set-up time (AOC-S) supplementary service; service description; English version ETS 300178:1992
Edition 1993-09

Integrated Services Digital Network (ISDN); advice of charge: charging information during the call (AOC-D) supplementary service; service description; English version ETS 300179:1992
Edition 1993-09

Industrial communication networks - High availability automation networks - Part 6: Distributed Redundancy Protocol (DRP) (IEC 62439-6:2010); English version EN 62439-6:2010
Edition 2010-09

Integrated Services Digital Network (ISDN) - Call Waiting (CW) supplementary service - Service description; English version ETS 300056:1991/A1:1996
Edition 1997-10

Human Factors (HF) - Minimum Man-Machine Interface (MMI) to public network based supplementary services; English version ETS 300738:1997
Edition 1998-04

Industrial communication networks - High availability automation networks - Part 5: Beacon Redundancy Protocol (BRP) (IEC 62439-5:2016); English version EN IEC 62439-5:2018
Edition 2018-08