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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); Line identification supplementary services; Stage 2 (GSM 03.81 version 5.2.0 Release 1996)
Standard published on 31.8.1998
Selected format:European digital cellular telecommunications system (Phase 1); Technical Realization of Call Offering Supplementary Services (GSM 03.82)
Standard published on 1.1.1995
Selected format:Digital cellular telecommunications system; Call Forwarding (CF) supplementary services; Stage 2 (GSM 03.82)
Standard published on 15.12.1996
Selected format:Digital cellular telecommunications system; Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 2 (GSM 03.83)
Standard published on 15.12.1996
Selected format:Digital cellular telecommunications system; Multi Party (MPTY) supplementary services; Stage 2 (GSM 03.84)
Standard published on 15.12.1996
Selected format:Digital cellular telecommunications system; Closed User Group (CUG) supplementary services; Stage 2 (GSM 03.85)
Standard published on 15.12.1996
Selected format:European digital cellular telecommunications system (Phase 1); Technical Realization of Call Restriction Supplementary Services (GSM 03.88)
Standard published on 1.1.1995
Selected format:Digital cellular telecommunications system; Call Barring (CB) supplementary services; Stage 2 (GSM 03.88)
Standard published on 15.12.1996
Selected format:Digital cellular telecommunications system; Unstructured Supplementary Service Data (USSD); Stage 2 (GSM 03.90)
Standard published on 15.12.1996
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Explicit Call Transfer (ECT) supplementary service; Stage 2 (GSM 03.91)
Standard published on 15.1.1996
Selected format:Latest update: 2026-01-15 (Number of items: 2 254 655)
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