Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: supplementary services stage 3 - Sub-part 23: Call Completion on No Reply (CCNR) (V1.2.0)
Edition 2012-09-01

Integrated Services Digital Network (ISDN). Signalling System n o 7 ISDN User Part (ISUP) version 2 for the international interface . Part 15: diversion supplementary services
Edition 1997-07-01

Integrated Services Digital Network (ISDN) - Signalling System n o 7 (SS7) - ISDN User Part (ISUP) version 3 for the international interface - Part 36: Abstract Test Suite (ATS) and partial Protocol implementation eXtra Information for Testing (PIXIT) proforma specification for supplementary services
Edition 2003-06-01

Network aspects (NA). Connectionless broadband data service (cbds). Part 3: definition of supplementary services
Edition 1995-06-01

Digital cellular telecommunications system (Phase 2) - Unstructured Supplementary Service Data (USSD) - Stage 1 (Endorsement of the English version ETS 300625:1997-09 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Unstructured Supplementary Service Data (USSD) - Stage 2 (Endorsement of the English version ETS 300549:1996-06 as German standard)
Edition 2001-04

Telecontrol equipment and systems - Part 6: Telecontrol protocols compatible with ISO standards and ITU-T recommendations; section 501: TASE.1 service definitions (IEC 60870-6-501:1995); German version EN 60870-6-501:1996
Edition 1997-08

Text-to-speech for television - General requirements (IEC 62731:2018); German version EN IEC 62731:2018
Edition 2018-10

Communication network dependability engineering (IEC 61907:2009); German version EN 61907:2010
Edition 2010-09

Configurable car infotainment services (CCIS) - Part 3: Framework (IEC 63246-3:2022); German version EN IEC 63246-3:2022
Edition 2023-08