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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); Mobile radio interface signalling layer 3; General aspects (GSM 04.07 version 5.2.1)
Standard published on 31.12.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface; Layer 3 specification (GSM 04.08 version 5.4.1)
Standard published on 30.4.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface; Layer 3 specification (GSM 04.08 version 5.6.3)
Standard published on 28.2.1998
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface; Layer 3 specification (GSM 04.08 version 5.9.1)
Standard published on 30.10.1998
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface; Layer 3 specification (GSM 04.08 version 5.10.1 Release 1996)
Standard published on 16.12.1998
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface; Layer 3 specification (GSM 04.08 version 5.11.1 Release 1996)
Standard published on 23.3.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface; Layer 3 specification (GSM 04.08 version 5.12.1 Release 1996)
Standard published on 5.10.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface; Layer 3 specification (GSM 04.08 version 5.13.1 Release 1996)
Standard published on 22.12.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface; Layer 3 specification (GSM 04.08 version 5.14.1 Release 1996)
Standard published on 28.4.2000
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Mobile radio interface; Layer 3 specification (GSM 04.08 version 5.15.1 Release 1996)
Standard published on 5.10.2000
Selected format:Latest update: 2026-05-15 (Number of items: 2 278 685)
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