Integrated Services Digital Network (ISDN) - ISDN-Global System for Mobile Communications (GSM) - Public Land Mobile Network (PLMN) signalling interface; English version ETS 300303:1994
Edition 1995-01

European digital cellular telecommunications system (Phase 2) - Teleservices supported by a GSM Public Land Mobile Network (PLMN); English version ETS 300502:1994
Edition 1995-03

Terminal Equipment (TE); international videotex interworking between a terminal and a host; english version ETS 300106:1991
Edition 1993-04

European digital cellular telecommunications system (Phase 2) - Interworking between the Public Land Mobile Network (PLMN) and a Packet Switched Public Data Network/Integrated Services Digital Network (PSPDN/ISDN) for the support of packet switched data transmission services; English version ETS 300603:1994
Edition 1995-01

Open Document Architecture (ODA) - ODA communication services - Part 1: Basic services; English version ETS 300498-1:1996
Edition 1997-02

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

Health informatics - Directory services for healthcare providers, subjects of care and other entities (ISO 21091:2013); English version EN ISO 21091:2013
Edition 2013-06

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Cordless Terminal Location Registration (CTLR) supplementary service; English version ETS 300693:1996
Edition 1996-09

European digital cellular telecommunications system (Phase 2) - Terminal Adaptation Functions (TAF) for services using synchronous bearer capabilities; English version ETS 300584:1994
Edition 1995-01

Integrated Services Digital Network (ISDN) - File Transfer Access and Management (FTAM) over ISDN based on simple file transfer profile; English version ETS 300388:1995
Edition 1995-08