GUTI - Globally Unique Temporary ID

In LTE the GUTI is allocated to the UE by the MME and has two components. These are the GUMMEI (Globally Unique MME ID) and the M-TMSI (MME-TMSI). While the GUMMEI identifies the MME, the M-TMSI identifies the UE within the MME.


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

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