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ifc - Initial Filter Criteria

ifc are associated with a particular IMS service profile, stored in the HSS and installed in the S-CSCF during registration. ifcs contain parameters which form part of a filter. When these parameters are identified within an incoming SIP message, the S-CSCF can use ifc to determine the next hop forwarding action.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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