Digital cellular telecommunications system (Phase 2) - Functions related to Mobile Stations (MS) in idle mode (Endorsement of the English version ETS 300535:1996-09 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) - Call Forwarding (CF) supplementary services - Stage 2 (Endorsement of the English version ETS 300543:1997-01 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

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) - Multiplexing and multiple access on the radio path (Endorsement of the English version ETS 300574:1996-10 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) - Call Forwarding (CF) supplementary services - Stage 3 (Endorsement of the English version ETS 300566:1996-08 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

Digital cellular telecommunications system (Phase 2+) - General on Terminal Adaptation Functions (TAF) for Mobile Stations (MS) (Endorsement of the English version ETS 300913:1999-07 as German standard)
Edition 2001-06