Syntax
rtp-stat event-threshold {all|codec-loss|codec-rtt|echo-return-loss|loss|remote-loss|rtt| jitter|remote-jitter|ssrc-change} num
no rtp-stat event-threshold {all|codec-loss|codec-rtt|echo-return-loss|loss|remote-loss|rtt| jitter|remote-jitter|ssrc-change}