Cisco 7975G Administration Guide - Page 153
Rcvr Report Time Received, G.729 A/AB gives 3.8
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Chapter 8 Monitoring the Cisco Unified IP Phone Remotely Streaming Statistics Table 8-5 Streaming Statistics Area Items (continued) Item Max MOS LQK MOS LQK Version Cumulative Conceal Ratio Interval Conceal Ratio Max Conceal Ratio Conceal Secs Severely Conceal Secs Latency1 Max Jitter Sender Size Sender Reports Received1 Sender Report Time Received1 Rcvr Size Rcvr Discarded Rcvr Reports Received1 Rcvr Report Time Received1 Description Baseline or highest MOS LQK score observed from start of the voice stream. These codecs provide the following maximum MOS LQK score under normal conditions with no frame loss: • G.711 gives 4.5 • G.722 gives 4.5 • G.728/iLBC gives 3.9 • G.729 A/AB gives 3.8 Version of the Cisco proprietary algorithm used to calculate MOS LQK scores. Total number of concealment frames divided by total number of speech frames received from start of the voice stream. Ratio of concealment frames to speech frames in preceding 3-second interval of active speech. If using voice activity detection (VAD), a longer interval might be required to accumulate 3 seconds of active speech. Highest interval concealment ratio from start of the voice stream. Number of seconds that have concealment events (lost frames) from the start of the voice stream (includes severely concealed seconds). Number of seconds that have more than 5 percent concealment events (lost frames) from the start of the voice stream. Estimate of the network latency, expressed in milliseconds. Represents a running average of the round-trip delay, measured when RTCP receiver report blocks are received. Maximum value of instantaneous jitter, in milliseconds. RTP packet size, in milliseconds, for the transmitted stream. Number of times RTCP Sender Reports have been received. Last time at which an RTCP Sender Report was received. RTP packet size, in milliseconds, for the received stream. RTP packets received from network but discarded from jitter buffers. Number of times RTCP Receiver Reports have been received. Last time at which an RTCP Receiver Report was received. OL-14640-01 Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 6.1 8-13