Digital cellular telecommunications system (Phase 2+) (GSM); Unstructured Supplementary Service Data (USSD); Stage 3 (GSM 04.90 version 7.0.1 Release 1998)
Digital cellular telecommunications system (Phase 2+) (GSM); Explicit Call Transfer (ECT) supplementary service; Stage 3 (GSM 04.91 version 6.0.1 Release 1997)
Digital cellular telecommunications system (Phase 2+) (GSM); Explicit Call Transfer (ECT) supplementary service; Stage 3 (GSM 04.91 version 7.0.1 Release 1998)
Digital cellular telecommunications system (Phase 2+) (GSM); Modulation (GSM 05.04 version 6.0.0 Release 1997)
Digital cellular telecommunications system (Phase 2+) (GSM); Modulation (GSM 05.04 version 6.1.1 Release 1997)
Digital cellular telecommunications system (Phase 2+) (GSM); Modulation (GSM 05.04 version 7.0.1 Release 1998)
Digital cellular telecommunications system (Phase 2+) (GSM); Modulation (GSM 05.04 version 7.1.1 Release 1998)
Digital cellular telecommunications system (Phase 2+) (GSM); Modulation (GSM 05.04 version 8.1.2 Release 1999)
Digital cellular telecommunications system (Phase 2+) (GSM); Full rate speech; Processing functions (GSM 06.01 version 6.0.1 Release 1997)
Digital cellular telecommunications system (Phase 2+) (GSM); Full rate speech; Processing functions (GSM 06.01 version 7.0.2 Release 1998)
Digital cellular telecommunications system (Phase 2+) (GSM); Full rate speech; Processing functions (GSM 06.01 version 8.0.1 Release 1999)
Digital cellular telecommunications system (Phase 2+) (GSM); Full rate speech; Transcoding (GSM 06.10 version 6.0.1 Release 1997)
53,361 afzonderlijke normreferenties geïndexeerd op basis van vastgelegde officiële bronnen. Eerdere edities zijn inbegrepen. De index en de collecties van uitgevers hebben een verschillende dekking. Zie bronnen en dekking.