Cisco CP-7911G Administration Guide - Page 217

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely Streaming Statistics Table 8-5 Streaming Statistics Area Items (continued) Item Description Max MOS LQK 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.729 A /AB gives 3.8 • G.728/iLBC gives 3.9 MOS LQK Version Version of the Cisco proprietary algorithm used to calculate MOS LQK scores. Cumulative Conceal Total number of concealment frames divided by total number of speech Ratio frames received from start of the voice stream. Interval Conceal Ratio 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. Max Conceal Ratio Highest interval concealment ratio from start of the voice stream. Conceal Secs Number of seconds that have concealment events (lost frames) from the start of the voice stream (includes severely concealed seconds). Severely Conceal Secs Latency1 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. Max Jitter Maximum value of instantaneous jitter, in milliseconds. Sender Size RTP packet size, in milliseconds, for the transmitted stream. Sender Reports Received1 Number of times RTCP Sender Reports have been received. Sender Report Time Received1 Last time at which an RTCP Sender Report was received. Rcvr Size RTP packet size, in milliseconds, for the received stream. Rcvr Discarded RTP packets received from network but discarded from jitter buffers. OL11954-01 Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.0 8-17