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

Integrated Services Digital Network (ISDN) - Synchronization and Co-ordination Function (SCF) for the provision of the OSI Connection-mode Network Service (OSI CONS) in an ISDN environment - Specification of SCF (ITU-T Recommendation Q.923 (1995), modified); English version ETS 300660:1996
Edition 1997-04

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Cordless Terminal Incoming Call Additional Network Feature (ANF-CTMI); English version ETS 300696:1996
Edition 1996-09

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; signalling network layer for circuit-mode basic call control - Part 5: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user; English version ETS 300403-5:1997
Edition 1998-08

Digital cellular telecommunications system (Phase 2) - Network Management (NM) - Part 2: Common aspects of GSM/DCS1800 Network Management; English version ETS 300612-2:1996
Edition 1997-07

Digital Enhanced Cordless Telecommunications (DECT) - Global System for Mobile communications (GSM); DECT/GSM Interworking Profile (IWP) - Implementation of facsimile group 3; English version ETS 300792:1997
Edition 1998-07

Industrial communication networks - Fieldbus specifications - Part 6-24: Application layer protocol specification - Type-24 Elements (IEC 61158-6-24:2014); English version EN 61158-6-24:2014, only on CD-ROM
Edition 2015-09

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

European digital cellular telecommunications system (Phase 2) - Layer 1 - General requirements; English version ETS 300553:1994
Edition 1995-01

Integrated Services Digital Network (ISDN) - Circuit-mode multiple-rate unrestricted 8 kHz structured bearer service category - Service description; English version ETS 300389:1994
Edition 1995-05