IM-AG - IMS Access Gateway

In the 3GPP IMS (IP Multimedia Subsystem) architecture, the IM-AG is a network functional entity which is incorporated into the functionality of the IBCF (Interconnection Border Control Function). The role of the IM-AG is to ensure that addressing associated with inbound and outbound media streams is correct, which is essentially a NAT (Network Address Translation) function. The IM-AG is also referred to as the TrGW (Transition Gateway).

NetX

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

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