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ETSI - European Telecommunication Standard Institute(ETSI) produces globally-applicable standards for information and telecommunication technologies (ICT) including land, mobile, radio, converged, broadcast and internet technologies.
Digital cellular telecommunications system (Phase 2) (GSM); Network Management (NM) procedures and messages on the A-bis interface (GSM 12.21)
Standard published on 30.6.1996
Selected format:Digital cellular telecommunications system (Phase 2) (GSM); Interworking of GSM Network Management (NM) procedures and messages at the Base Station Controller (BSC) (GSM 12.22)
Standard published on 30.8.1996
Selected format:European digital cellular telecommunications system (Phase 2); Unstructured Supplementary Service Data (USSD); Stage 1 (GSM 02.90)
Standard published on 15.2.1995
Selected format:Digital cellular telecommunications system (Phase 2) (GSM); Unstructured Supplementary Service Data (USSD); Stage 1 (GSM 02.90 version 4.1.1)
Standard published on 15.9.1997
Selected format:European digital cellular telecommunications system (Phase 2); Application of the Base Station System Application Part (BSSAP) on the E-interface (GSM 09.08)
Standard published on 1.8.1995
Selected format:Digital cellular telecommunications system (Phase 2) (GSM); Subscriber and equipment trace (GSM 12.08)
Standard published on 31.3.1997
Selected format:Digital cellular telecommunications system (Phase 2) (GSM); Subscriber and equipment trace (GSM 12.08 version 4.5.1)
Standard published on 28.2.1998
Selected format:European digital cellular telecommunications system (Phase 2); Alphabets and language-specific information (GSM 03.38)
Standard published on 12.9.1994
Selected format:Digital cellular telecommunications system (Phase 2) (GSM); Subscriber data management; Stage 2 (GSM 03.16)
Standard published on 15.1.1996
Selected format:Digital cellular telecommunications system (Phase 2) (GSM); Subscriber data management; Stage 2 (GSM 03.16)
Standard published on 30.11.1996
Selected format:Latest update: 2026-01-02 (Number of items: 2 253 797)
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