Digital cellular telecommunications system (Phase 2) - Radio subsystem link control (Endorsement of the English version ETS 300578:1999 as German standard)
Edition 2000-12

Digital cellular telecommunications system (Phase 2) - Technical realisation of supplementary services (Endorsement of the English version ETS 300529:1996-11 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Technical realization of Short Message Service Cell Broadcast (SMSCB) (Endorsement of the English version ETS 300537:1996-05 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Line identification supplementary services - Stage 2 (Endorsement of the English version ETS 300542:1999-01 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Mobile radio interface layer 3 - Supplementary services specification; General aspects (Endorsement of the English version ETS 300558:1996-08 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Point-to-Point (PP) Short Message Service (SMS) support on mobile radio interface (Endorsement of the English version ETS 300559:1996-09 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Mobile radio interface layer 3 - Supplementary services specification; Formats and coding (Endorsement of the English version ETS 300564:1996-08 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Information element mapping between Mobile Station-Base Station System (MS-BSS) and Base Station System-Mobile-services Switching Centre (BSS-MSC) signalling procedures and the Mobile Application Part (MAP) (Endorsement for the English version ETS 300605:1998-05 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Specification of the Subscriber Identity Module-Mobile Equipment (SIM-ME) interface (Endorsement of the English version ETS 300608:1999-12 as German standard)
Edition 2001-04

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3 - Sub-part 20: Discreet Listening (DL) (Endorsement of the English version EN 300 392-12-20 V1.2.1 (2012-04) as German standard)
Edition 2012-12