Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 4: Gateways basic operation; Sub-part 4-2: Integrated Services Digital Network (ISDN) gateway (Endorsement of the English version ETS 300392-4-2:2000-09 as German Standard)
Edition 2001-07

Digital cellular telecommunications system (Phase 2) - General requirements on interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) (Endorsement of the English version ETS 300604:1999 as German standard)
Edition 2000-12

Digital Enhanced Cordless Telecommunications (DECT) - Integrated Services Digital Network (ISDN) interworking for end system configuration; profile Implementation Conformance Statement (ICS) - Part 1: Portable radio termination (PT); English Version ETS 300705-1:1997
Edition 1998-07

Digital Enhanced Cordless Telecommunications (DECT) - Integrated Services Digital Network (ISDN) interworking for end system configuration; Profile Implementation Conformance Statement (ICS) - Part 2: Fixed radio Termination (FT); English Version ETS 300705-2:1997
Edition 1998-06

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Universal Access Number (UAN) service - Service description; English version ETS 300710:1997
Edition 1997-12

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Virtual Card Calling (VCC); service description; English version ETS 300711:1997
Edition 1997-12

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Premium Rate (PRM) service; service description; English version ETS 300712:1997
Edition 1997-12

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Televoting (VOT) service; service description; English version ETS 300713:1997
Edition 1997-12

Digital Enhanced Cordless Telecommunications (DECT) - Integrated Services Digital Network (ISDN); DECT/ISDN interworking for end system configuration; Profile Test Specification (PTS) - Part 1: Summary; English version ETS 300758-1:1997
Edition 1998-07

Digital Enhanced Cordless Telecommunications (DECT) - Integrated Services Digital Network (ISDN); DECT/ISDN interworking for end system configuration; Profile Test Specification (PTS) - Part 2: Profile Specific Test Specification (PSTS) for Portable radio Termination (PT); English version ETS 300758-2:1997
Edition 1998-07