Digital cellular telecommunications system (Phase 2) - Mobile-services Switching Center - Base Station System (MSC-BSS) interface; Layer 3 specification (Endorsement of the English version ETS 300590:1998 as German standard)
Edition 2000-12

Digital cellular telecommunications system (Phase 2) - Inband control of remote transcoders and rate adaptors for Enhanced Full Rate (EFR) and full rate traffic channels (Endorsement of the English version ETS 300597:1998 as German standard)
Edition 2000-12

Digital cellular telecommunications system (Phase 2) - Mobile Application Part (MAP) specification (Endorsement of the English version ETS 300599:1998 as German standard)
Edition 2000-12

Integrated Services Digital Network (ISDN) - Signalling System No. 7; Digital cellular telecommunications system (phase 2); Application of ISDN User Part (ISUP) version 2 for the ISDN; Public Land Mobile Network (PLMN) signalling interface - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version ETS 300646-2:1998 as German standard)
Edition 1999-09

Integrated Services Digital Network (ISDN) - Signalling System No. 7; Digital cellular telecommunications system (Phase 2); application of ISDN User Part (ISUP) version 2 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification (Endorsement of the English version ETS 300646-3:1998 as German Standard)
Edition 1999-09

Integrated Services Digital Network (ISDN) - Signalling System No. 7; Digital cellular telecommunications system (Phase 2); Application of ISDN User Part (ISUP) version 2 for the ISDN-Public Land Mobile Network (PLMN) signalling interface - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation extra Information for Testing (PIXIT) proforma specification (Endorsement of the English version ETS 300646-4:1998 as German Standard)
Edition 1999-09

Intelligent Network (IN) - Intelligent Network Capability Set 1 (CS1) - Application of Intelligent Network Application Protocols (INAPs) for UPT service set 1 [ITU-T-Recommendation Q.1551:1997] (Endorsement of the English version ETS 300670:1998 as German standard)
Edition 2000-05

Electromagnetic compatibility and radio spectrum matters (ERM) - Electromagnetic Compatibility (EMC) standard for wide-area paging equipment (ETS 300741:1998)
Edition 2000-08

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol - Closed User Group (CUG) supplementary service - Part 1: Protocol specification (ITU-T Q.2955.1:1996, modified) (Endorsement of the English version ETS 300770-1:1998 as German standard)
Edition 2000-01

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; closed User Group (CUG) supplementary service - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version ETS 300770-2:1998 as German standard)
Edition 2000-01