QoS Statistics

Reported QoS data includes the following per-flow statistics:

• RTP and RTCP lost packets—Count of lost packets for both RTP and RTCP based on comparing the sequence numbers since the beginning of the call or the last context memory poll.
• RTP and RTCP average jitter—Incremental number of packets for both RTP and RTCP that have been used to generate the total and max jitter since the beginning of the call or the last context memory poll. The incremental accumulated jitter (in milliseconds) over all the packets received.
• RTP and RTCP maximum jitter—Maximum single jitter value (in milliseconds) for both RTP and RTCP from all the packets since the beginning of the call or the last context memory poll.
• RTCP average latency—Number of RTCP frames over which latency statistics have been accumulated and the incremental total of latency values reported since the beginning of the call or the last context memory poll.
• RTCP maximum latency—Highest latency value measured since the beginning of the call or the last context memory poll.
• RTP packet count
• RTP bytes sent and received
• RTCP lost packets—RTP lost packets reported in RTCP packets.
• ATP lost packets—Lost packets determined by monitoring RTP sequence numbers.
• R-Factor and MOS data—R-Factor and MOS data for the calling and called segments at the end of a session