Chapter 8 Monitoring the Cisco Unified IP Phone Remotely
Streaming Statistics
Table | Streaming Statistics Area Items (continued) | |||||||
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| Rcvr Lost Packets | Total number of RTP data packets that have been lost since starting receiving data on this | ||||||
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| connection. Defined as the number of expected packets less the number of packets actually | |||
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| received, where the number of received packets includes any that are late or duplicate. The | |||
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| value displays as 0 if the connection was set to | |||
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| Avg Jitter |
| Estimate of mean deviation of the RTP data packet | |||||
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| milliseconds. The value displays as 0 if the connection was set to | |||
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| Rcvr Codec |
| Type of audio encoding used for the received stream. | |||||
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| Rcvr Reports Sent1 | Number of times the RTCP Receiver Reports have been sent. |
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| Rcvr Report Time Sent1 | Internal time stamp indication when a RTCP Receiver Report was sent. |
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| Rcvr Packets |
| Total number of RTP data packets received by the phone since starting receiving data on | |||||
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| this connection. Includes packets received from different sources if this is a multicast call. | |||
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| The value displays as 0 if the connection was set to | |||
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| Rcvr Octets |
| Total number of payload octets received in RTP data packets by the device since starting | |||||
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| reception on the connection. Includes packets received from different sources if this is a | |||
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| multicast call. The value displays as 0 if the connection was set to | |||
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| MOS LQK |
| Score that is an objective estimate of the mean opinion score (MOS) for listening quality | |||||
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| (LQK) that rates from 5 (excellent) to 1 (bad). This score is based on audible concealment | |||
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| events due to frame loss in the preceding | |||
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| information, see the “Monitoring the Voice Quality of Calls” section on page | |||
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| Note The MOS LQK score can vary based on the type of codec that the | |||
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| Cisco Unified IP Phone uses. | ||
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| Avg MOS LQK |
| Average MOS LQK score observed for the entire voice stream. | |||||
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| Min MOS LQK |
| Lowest MOS LQK score observed from start of the voice stream. | |||||
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| Max MOS LQK |
| Baseline or highest MOS LQK score observed from start of the voice stream. | |||||
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| These codecs provide the following maximum MOS LQK score under normal conditions | |||
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| with no frame loss: | |||
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| • | G.711 gives 4.5 | ||
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| • | G.722 gives 4.5 | ||
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| • | G.728/iLBC gives 3.9 | ||
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| • G.729 A/AB gives 3.8 | |||
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| MOS LQK Version | Version of the Cisco proprietary algorithm used to calculate MOS LQK scores. | ||||||
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| Cumulative Conceal Ratio | Total number of concealment frames divided by total number of speech frames received | ||||||
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| from start of the voice stream. | |||
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| Interval Conceal Ratio | Ratio of concealment frames to speech frames in preceding | ||||||
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| speech. If using voice activity detection (VAD), a longer interval might be required to | |||
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| accumulate 3 seconds of active speech. | |||
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| Max Conceal Ratio | Highest interval concealment ratio from start of the voice stream. | ||||||
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| Conceal Secs |
| Number of seconds that have concealment events (lost frames) from the start of the voice | |||||
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| stream (includes severely concealed seconds). | |||
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| Severely Conceal Secs | Number of seconds that have more than 5 percent concealment events (lost frames) from | ||||||
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| the start of the voice stream. | |||
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| Cisco Unified IP Phone 7962G and 7942G Administration Guide for Cisco Unified Communications Manager 6.1 | |||||
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