We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
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 layer 3 supplementary services specification; Formats and coding (GSM 04.80 version 5.3.1 Release 1996)
Standard published on 21.7.1999
Selected format:Digital cellular telecommunications system; Line identification supplementary services; Stage 3 (GSM 04.81 version 5.0.1)
Standard published on 30.5.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Line identification supplementary services; Stage 3 (GSM 04.81 version 6.0.1 Release 1997)
Standard published on 1.9.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Line identification supplementary services; Stage 3 (GSM 04.81 version 7.0.1 Release 1998)
Standard published on 12.1.2000
Selected format:Digital cellular telecommunications system; Call Forwarding (CF) supplementary services; Stage 3 (GSM 04.82 version 5.0.1)
Standard published on 30.5.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Call Forwarding (CF) supplementary services; Stage 3 (GSM 04.82 version 6.0.1 Release 1997)
Standard published on 1.9.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Call Forwarding (CF) supplementary services; Stage 3 (GSM 04.82 version 7.0.2 Release 1998)
Standard published on 14.12.1999
Selected format:Digital cellular telecommunications system; Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 3 (GSM 04.83 version 5.0.1)
Standard published on 30.5.1997
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 3 (GSM 04.83 version 6.0.1 Release 1997)
Standard published on 1.9.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Call Waiting (CW) and Call Hold (HOLD) supplementary services; Stage 3 (GSM 04.83 version 7.0.1 Release 1998)
Standard published on 12.1.2000
Selected format:Latest update: 2025-08-04 (Number of items: 2 211 733)
© Copyright 2025 NORMSERVIS s.r.o.