STR - Session Termination Request

This Diameter message is used to tear down an ongoing session. For example, upon detection of the SIP BYE and 200 OK, the P-CSCF will send the STR message to the PCRF in order to ensure the Dedicated EPS Bearer is removed in the LTE network.


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

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