3.1.6 Timer Events
This protocol has the following RTP-related timer event processing rules, in addition to those specified in [RFC3550] section 6.3:
Throttling mode timer expires: No action. The algorithm in section 3.1.5 detects that the timer expired and switches back to normal mode when the next RTP packet is received.
Dominant speaker expiration timer expires: The receiver MUST set IsDominantSpeakerValid to "false", and notify the upper layer that the stream has no dominant speaker.
Participant time-out timer expires: The receiver MUST delete the respective participant object.