Cisco 7906G Administration Guide - Page 194
Voice Quality Metrics, codec: G.729, G.728/iLBC, G.711 u-law, or Lin16k.
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Page 194 highlights
Status Menu Chapter 7 Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone Table 7-6 Call Statistics Items (continued) Item Description TxType Type of voice stream transmitted (RTP streaming audio from codec): G.729, G.728/iLBC, G.711 u-law, G.711 A-law, or Lin16k. TxSize Size of voice packets, in milliseconds, in the transmitting voice stream. TxCnt Number of RTP voice packets transmitted since voice stream was opened. Note This number is not necessarily identical to the number of RTP voice packets transmitted since the call began because the call might have been placed on hold. Avg Jtr Estimated average RTP packet jitter (dynamic delay that a packet encounters when going through the network) observed since the receiving voice stream was opened. Max Jtr Maximum jitter observed since the receiving voice stream was opened. RxDisc Number of RTP packets in the receiving voice stream that have been discarded (bad packets, too late, and so on). Note The phone will discard payload type 19 comfort noise packets that are generated by Cisco Gateways, which will increment this counter. RxLost Missing RTP packets (lost in transit). Voice Quality Metrics MOS LQK Score that is an objective estimate of the mean opinion score (MOS) for listening quality (LQK) that rates from 5 (excellent) to 1 (bad). This score is based on audible concealment events due to frame loss in the preceding 8-second interval of the voice stream. For more information, see the "Monitoring the Voice Quality of Calls" section on page 9-24. Note The MOS LQK score can vary based on the type of codec that the Cisco Unified IP Phone uses. Avg MOS Average MOS LQK score observed for the entire voice stream. LQK 7-18 Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.1 OL-14585-01
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