Cisco 7906G Administration Guide - Page 195

Chapter 7 Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone Status Menu Table 7-6 Call Statistics Items (continued) Item Description Min MOS Lowest MOS LQK score observed from start of the voice stream. LQK Max MOS Baseline or highest MOS LQK score observed from start of the LQK 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 of the Cisco proprietary algorithm used to calculate MOS Version LQK scores. Cumulativ Total number of concealment frames divided by total number of e Conceal speech frames received from start of the voice stream. Ratio 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 Number of seconds that have more than 5 percent concealment events (lost frames) from the start of the voice stream. OL-14585-01 Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.1 7-19