Cisco 7906G Administration Guide - Page 194

Voice Quality Metrics, codec: G.729, G.728/iLBC, G.711 u-law, or Lin16k.

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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Chapter 7
Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone
Status Menu
7-18
Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.1
OL-14585-01
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
LQK
Average MOS LQK score observed for the entire voice stream.
Table 7-6
Call Statistics Items (continued)
Item
Description