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TechSpec
  • Foreword
  • 1 Scope
  • 2 References
  • 3 Definitions and abbreviations
  • 4 Architecture
  • 5 Optimal routeing for basic mobile-to-mobile calls: message flows
  • 6 Optimal routeing for conditional call forwarding: message flows
  • 7 Interactions between optimal routeing and supplementary services
  • 8 Interactions between optimal routeing and other network features
  • 9 Functional requirements of entities performing optimal routeing
    • 9.1 Charging requirements for optimal routeing
    • 9.2 Functional behaviour of VMSCA
    • 9.3 Functional behaviour of VLRA
    • 9.4 Functional behaviour of GMSC
      • 9.4 Functional behaviour of GMSC
      • 9.4.1 Procedure OR_Set_ORA_Parameters
      • 9.4.2 Procedure OR_Handle_RCH
      • 9.4.3 Procedure Route_Permitted
      • 9.4.4 Procedure OR_Handle_SRI_Negative_Response
    • 9.5 Functional behaviour of HLR
    • 9.6 Functional behaviour of VLRB
    • 9.7 Functional behaviour of VMSCB
  • 10 Contents of messages

9.7 Functional behaviour of VMSCB

23.0793GPPRelease 17Support of Optimal Routeing (SOR)Technical realizationTS

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

The functional behaviour of VMSCB when it handles an incoming call is described in 3GPP TS 23.018 [6]. The procedure specific to Support of Optimal Routeing is specified in this clause.

9.7.1 Procedure Handle_ORLCF_VMSC

The procedure UUS_ICH_Handle_LCF is specific to UUS; it is specified in 3GPP TS 23.087 [9].

Figure 12: Procedure Handle_ORLCF_VMSC