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The Diameter protocol is intended to provide a framework for any services which require AAA ( Access, Authorization, and Accounting) /Policy support across many networks. Diameter is used in 3GPP networks extensively, particularly within LTE and IMS networks. Key interfaces which use Diameter include S6a, Gx and Rx, amongst many others.


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

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