![]() ![]() The PCEF sends an RAA message to the Policy Charging through the Gx interface. ![]() The Policy Charging sends an RAR message to the PCEF through the Gx interface, instructing the PCEF to delete the dedicated bearer of the voice media stream.The AF sends an STR message to the Policy Charging through the Rx interface to terminate the bearer session. The Policy Charging sends an AAA message to the AF through the Rx interface.The PCEF updates the voice media stream status and sends an RAA message to the Policy Charging through the Gx interface.The Policy Charging sends an RAR message to the PCEF through the Gx interface, instructing the PCEF to modify bearer information about the voice media stream. ![]()
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