Integrated Services Digital Network (ISDN). Signalling System n o 7 ISDN User Part (ISUP) version 2 for the international interface. Part 14: Explicit Call Transfer (ECT) supplementary service
Edition 1997-07-01

Integrated Services Digital Network (ISDN). Signalling System n o 7 ISDN User Part (ISUP) version 2 for the international interface . Part 16: Call Hold (HOLD) supplementary service
Edition 1997-07-01

Integrated Services Digital Network (ISDN). Signalling System number 7 ISDN User Part (ISUP) version 2 for the international interface. Part 17: Call Waiting (CW) supplementary service
Edition 1997-07-01

Integrated Services Digital Network (ISDN). Signalling System n o 7 ISDN User Part (ISUP) version 2 for the international interface. Part 19: Three-Party (3PTY) supplementary service
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 4: address screening supplementary service
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

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