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TechSpec
  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Definitions and abbreviations
  • 4 General
  • 5 Handling of completion of calls to busy subscriber
  • 6 Monitoring and CCBS Call Reporting
  • 7 Mobility
  • 8 Interaction with other supplementary services
  • 9 Interaction with other network features
  • 10 Interworking with other networks
  • 11 Network entity functions
    • 11 Network entity functions
    • 11.1 Originating Network Processes
      • 11.1.1 Processes and procedures in MSC/VLR
      • 11.1.2 Processes and procedures in HLR
    • 11.2.1 Procedures in GMSC
    • 11.2.2 Processes and procedures in HLR
    • 11.2.3 Procedures in MSC/VLR
    • 11.3 Processes and procedures common in originating and destination network entities
      • 11.3 Processes and procedures common in originating and destination network entities
    • 11.2 Destination Network Processes
    • 12 Information stored in the HLRs
    • 13 State transition model

    11 Network entity functions

    23.0933GPPRelease 17Stage 2Technical realization of Completion of Calls to Busy Subscriber (CCBS)TS

    Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

    The following SDL diagrams describe the various processes and procedures within individual network entities for handling CCBS. The SDL diagrams are as follows: