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Chapter 6 Viewing Model Information, Status, Statistics, and Security Information on the Cisco Unified IP Phone
| Call Statistics Screen |
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Table |
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Item | Description |
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Min MOS LQK | Lowest MOS LQK score observed from start of the |
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| voice stream. |
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Max MOS LQK | Baseline or highest MOS LQK score observed from |
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| start of the voice stream. |
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| These codecs provide the following maximum MOS |
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| LQK score under normal conditions with no frame |
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| loss: |
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| • G.711 gives 4.5 |
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| • G.729 A /AB gives 3.7 |
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MOS LQK Version | Version of the Cisco proprietary algorithm used to |
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| calculate MOS LQK scores. |
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Cmltve Conceal Ratio | Total number of concealment frames divided by total |
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| number of speech frames received from start of the |
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| voice stream. |
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Interval Conceal Ratio | Ratio of concealment frames to speech frames in |
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| preceding |
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| using voice activity detection (VAD), a longer |
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| interval might be required to accumulate 3 seconds |
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| of active speech. |
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Max Conceal Ratio | Highest interval concealment ratio from start of the |
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| voice stream. |
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Conceal Secs | Number of seconds that have concealment events |
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| (lost frames) from the start of the voice stream |
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| (includes severely concealed seconds). |
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Severely Conceal Secs | Number of seconds that have more than 5 percent |
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| concealment events (lost frames) from the start of |
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| the voice stream. |
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| Cisco Unified IP Phone 7940G/7960G Administration Guide for Cisco Unified CallManager 4.2(3) |
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