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); Completion of Calls to Busy Subscriber (CCBS); Stage 2 (GSM 03.93 version 6.1.0)
Standard published on 31.7.1998
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Technical realization of Completion of Calls to Busy Subscriber (CCBS); Stage 2 (GSM 03.93 version 6.2.0 Release 1997)
Standard published on 30.10.1998
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Technical realization of Completion of Calls to Busy Subscriber (CCBS); Stage 2 (GSM 03.93 version 7.0.0 Release 1998)
Standard published on 13.8.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Completion of Calls to Busy Subscriber (CCBS); Stage 3 (GSM 04.93 version 6.1.0 Release 1997)
Standard published on 31.7.1998
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Completion of Calls to Busy Subscriber (CCBS); Stage 3 (GSM 04.93 version 6.1.1 Release 1997)
Standard published on 26.2.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Completion of Calls to Busy Subscriber (CCBS); Stage 3 (GSM 04.93 version 7.0.0 Release 1998)
Standard published on 13.8.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Customised Applications for Mobile network Enhanced Logic (CAMEL); Service definition, Stage 1 (GSM 02.78 version 6.1.0)
Standard published on 31.7.1998
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Customised Applications for Mobile network Enhanced Logic (CAMEL); Service definition - Stage 1 (GSM 02.78 version 6.3.0 Release 1997)
Standard published on 30.8.1999
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Customised Applications for Mobile network Enhanced Logic (CAMEL); Service definition - Stage 1 (GSM 02.78 version 6.4.0 Release 1997)
Standard published on 31.5.2000
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Customised Applications for Mobile network Enhanced Logic (CAMEL); Service definition - Stage 1 (3GPP TS 02.78 version 6.5.0 Release 1997)
Standard published on 31.1.2001
Selected format:Latest update: 2026-01-26 (Number of items: 2 257 479)
© Copyright 2026 NORMSERVIS s.r.o.