Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7); ISDN User Part (ISUP) version 4 for the international interface - Part 1: Basic services (ITU-T Recommendations Q.761 to Q.764 (1999), modified) (Endorsement of the English version EN 300356-1 V 4.2.1 (2001-07) as German standard)
Edition 2002-01

Integrated Services Digital Network (ISDN) - Signalling System No. 7; ISDN User Part (ISUP) version 2 for the international interface - Part 31: Protocol Implementation Conformance Statement (PICS) proforma specification for basis services (Endorsement of the English version EN 300356-31 V 3.0.3 (2000-08) as German Standard)
Edition 2001-09

Integrated Services Digital Network (ISDN) - Signalling System No. 7; ISDN User Part (ISUP) version 2 for the international interface - Part 32: Test Suite Structure and Test Purposes (TSS&TP) specification for basic services (Endorsement of the English version EN 300356-32 V 3.0.4 (2000-09) as German Standard)
Edition 2001-09

Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7) - ISDN User Part (ISUP) version 4 for the international interface - Part 33: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for basic services (Endorsement of the English version EN 300356-33 V4.1.1 (2003-07) as German standard)
Edition 2004-07

Private Integrated Services Network (PISN) - Mapping functions for the employment of a circuit mode basic service and the supplementary service user-to-user signalling as a pair of on-demand inter-PINX connections (Mapping/UUS) (Endorsement of the English version EN 301102 V 1.1.1 (1998-06) as German standard)
Edition 2000-03

Corporate telecommunication Networks (CN) - Signalling interworking between QSIG and H.323 - Basic services (Endorsement of ISO/IEC 23289 (2002), modified) (Endorsement of the English version EN 302036 V 1.1.1 (2003-05) as German standard)
Edition 2003-12

Intelligent Transport Systems (ITS) - Vehicular Communications - Basic Set of Applications - Part 2: Specification of Cooperative Awareness Basic Service (Endorsement of the English version EN 302 637-2 V1.4.1 (2019-04) as a German standard)
Edition 2019-07

Intelligent Transport Systems (ITS) - Vehicular Communications - Basic Set of Applications - Part 3: Specifications of Decentralized Environmental Notification Basic Service (Endorsement of the English version EN 302 637-3 V1.3.1 (2019-04) as a German standard)
Edition 2019-07

Private Telecommunications Network (PTN) - Method for the specification of basic and supplementary services; English version ETS 300387:1994
Edition 1994-11

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