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ČSN is a protected designation of Czech national technical standards.
Digital cellular telecommunications system (Phase 2). Mobile radio interface layer 3 supplementary service specification. General aspects (GSM 04.10)
Standard published on 1.10.1997
Selected format:European digital cellular telecommunications system (Phase 2). Mobile radio interface layer 3 supplementary service specification. General aspects (GSM 04.10) (including Amendment A1:1995)
Standard published on 1.3.1996
Selected format:European digital cellular telecommunications system (Phase 2). Mobile radio interface layer 3. Supplementary services specification. Formats and coding (GSM 04.80)
Standard published on 1.3.1996
Selected format:Digital cellular telecommunications system (Phase 2). Mobile radio interface layer 3. Supplementary services specification. Formats and coding (GSM 04.80)
Standard published on 1.10.1997
Selected format:Digital cellular telecommunications system (Phase 2). Mobile radio interface layer 3. Supplementary services specification. Formats and coding (GSM 04.80)
Standard published on 1.10.1997
Selected format:European digital cellular telecommunications system (Phase 2). Line identification supplementary services. Stage 3 (GSM 04.81)
Standard published on 1.3.1996
Selected format:European digital cellular telecommunications system (Phase 2). Call Frowarding (CF) supplementary services. Stage 3 (GSM 04.82)
Standard published on 1.3.1996
Selected format:Digital cellular telecommunications system (Phase 2). Call Frowarding (CF) supplementary services. Stage 3 (GSM 04.82)
Standard published on 1.8.1997
Selected format:European digital cellular telecommunications system (Phase 2). Signalling requirements on interworking between the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) and the Public Land Mobile Network (PLMN) (GSM 09.03)
Standard published on 1.3.1996
Selected format:European digital cellular telecommunications system (Phase 2). Technical realization of supplementary services (GSM 03.11)
Standard published on 1.11.1996
Selected format:Latest update: 2025-08-20 (Number of items: 2 213 083)
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