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MTP2 - Message Transfer Part Level 2

Message Transfer Part Level 2 resides at Layer 2 of the OSI (Open Systems Interconnect) model it is responsible for the reliable transmission of signalling units over an individual SL (Signalling Link). MTP2 reliability is achieved through retransmission techniques.


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

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