Electromagnetic compatibility and Radio spectrum Matters (ERM); Terrestrial Flight Telecommunications System; Protocol to support GSM-A;

Standard published on 26.11.2001

Digital cellular telecommunications system (Phase 2+) (GSM); Completion of Calls to Busy Subscriber (CCBS); Service description, Stage 1 (GSM 02.93 version 6.0.1 Release 1997)

Standard published on 31.7.1998

Digital cellular telecommunications system (Phase 2+) (GSM); Completion of Calls to Busy Subscriber (CCBS); Service description, Stage 1 (GSM 02.93 version 7.0.0 Release 1998)

Standard published on 13.8.1999

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

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

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

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

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

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

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