Integrated Services Digital Network (ISDN) - Interworking between public ISDNs and private ISDNs for the provision of telecommunication services - General aspects; English version ETS 300345:1995
Edition 1995-08

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol - Multiple Subscriber Number (MSN) supplementary service - Part 1: Protocol specification (ITU-T Recommendation Q.2951, clause 2 (1995), modified); English version ETS 300662-1:1996
Edition 1997-11

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol - Calling Line Identification Presentation (CLIP) supplementary service - Part 1: Protocol specification (ITU-T Recommendation Q.2951, clause 3 (1995), modified); English version ETS 300663-1:1996
Edition 1997-11

Information technology - Security techniques - Code of practice for Information security controls based on ISO/IEC 27002 for telecommunications organizations (ISO/IEC 27011:2016); German version EN ISO/IEC 27011:2020
Edition 2021-10

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

Forensic Sciences - Part 4: Interpretation (ISO/DIS 21043-4:2024); German and English version prEN ISO 21043-4:2024
Edition 2024-06

Integrated Services Digital Network (ISDN); Meet-Me Conference (MMC) supplementary service; service description; English version ETS 300164:1992
Edition 1993-09

Integrated Services Digital Network (ISDN) - ISDN Packet Mode Bearer Services (PMBS) - ISDN Virtual Call (VC) and Permanent Virtual Call (PVC) bearer services provided by the B-channel of the user access, basic and primary rate; English version ETS 300048:1997
Edition 1998-08

Radio Equipment and Systems (RES) - Trans-European Trunked Radio (TETRA) - Packet Data Optimized (PDO) - Part 1: General network design; English version ETS 300393-1:1996
Edition 1997-08

OPC Unified Architecture - Part 3: Address Space Model (IEC 62541-3:2020); English version EN IEC 62541-3:2020
Edition 2021-08