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IBCF - Interconnection Border Control Function

The IBCF is a SIP (Session Initiation Protocol) ALG (Application Level Gateway) which is designed to facilitate interconnection between two service provider domains. Similar in role to a SBC (Session Border Controller), the IBCF performs functions such as IPv4 to IPv6 interworking, network topology hiding, SIP message screening and transport plane control via the TrGW (Transition Gateway).


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

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