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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; Technical realization of supplementary services (GSM 03.11 version 5.0.1)
Standard published on 30.5.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Technical realization of Supplementary Services (GSM 03.11 version 6.0.1 Release 1997)
Standard published on 1.9.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Technical realization of Supplementary Services (GSM 03.11 version 7.0.1 Release 1998)
Standard published on 12.1.2000
Selected format:Digital cellular telecommunications system; Security related network functions (GSM 03.20 version 5.0.1)
Standard published on 30.5.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Security related network functions (GSM 03.20 version 5.1.1)
Standard published on 15.8.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Security related network functions (GSM 03.20 version 5.2.0)
Standard published on 15.7.1998
Selected format:Digital cellular telecommunications system; Functions related to Mobile Station (MS) in idle mode and group receive mode (GSM 03.22 version 5.0.1)
Standard published on 30.5.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Functions related to Mobile Station (MS) in idle mode and group receive mode (GSM 03.22 version 5.1.1)
Standard published on 15.9.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Functions related to Mobile Station (MS) in idle mode and group receive mode (GSM 03.22 version 5.2.1)
Standard published on 31.12.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Functions related to Mobile Station (MS) in idle mode and group receive mode (GSM 03.22 version 5.3.1)
Standard published on 10.12.1998
Selected format:Latest update: 2025-07-20 (Number of items: 2 209 004)
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