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.
Digital cellular telecommunications system (Phase 2) (GSM). Technical realization of supplementary services (GSM 03.11)
Standard published on 1.7.2002
Selected format:European digital cellular telecommunications system (Phase 2). Location registration procedures (GSM 03.12)
Standard published on 1.12.1995
Selected format:European digital cellular telecommunications system (Phase 2). Discontinuous Reception (DRX) in the GSM system (GSM 03.13)
Standard published on 1.12.1995
Selected format:European digital cellular telecommunications system (Phase 2). Support of Dual Tone Multi-Frequency signalling (DTMF) via the GSM system (GSM 03.14)
Standard published on 1.12.1995
Selected format:European digital cellular telecommunications system (Phase 2). Technical realization of operator determined barring (GSM 03.15)
Standard published on 1.12.1995
Selected format:European digital cellular telecommunications system (Phase 2). Security related network functions (GSM 03.20)
Standard published on 1.7.2002
Selected format:European digital cellular telecommunications system (Phase 2). Security related network functions (GSM 03.20)
Standard published on 1.11.1999
Selected format:Digital cellular telecommunications system (Phase 2) (GSM). Security related network functions (GSM 03.20 version 4.4.1)
Standard published on 1.7.2002
Selected format:European digital cellular telecommunications system (Phase 2). Functions related to Mobile Station (MS) in idle mode (GSM 03.22)
Standard published on 1.12.1997
Selected format:European digital cellular telecommunications system (Phase 2). Functions related to Mobile Station (MS) in idle mode (GSM 03.22)
Standard published on 1.7.2002
Selected format:Latest update: 2026-07-10 (Number of items: 2 286 359)
© Copyright 2026 NORMSERVIS s.r.o.