Cisco 8831 Administration Manual page 121

Model information, status, and statistics
Item
Sender Codec Type
Receiver Size (Rcvr Size)
Sender Size
Rcvr Packets
Sender Packets
Avg Jitter
Max Jitter
Rcvr Discarded
Rcvr Lost Packets
Voice Quality Metrics
MOS LQK
Avg MOS LQK
Min MOS LQK
Max MOS LQK
Cisco Unified IP Conference Phone 8831 Administration Guide for Cisco Unified Communications Manager 9.0
Description
Type of voice stream transmitted (RTP streaming audio):
G.729, G.711 u-law, G.711 A-law, G.722, or Lin16k.
Number of bytes of voice packets received since voice stream
was opened.
Number of bytes of voice packets sent since voice stream was
opened.
Number of RTP voice packets received since voice stream was
opened.
This number is not necessarily identical to the number
Note
of RTP voice packets received since the call began
because the call might have been placed on hold.
Number of RTP voice packets transmitted since voice stream
was opened.
This number is not necessarily identical to the number
Note
of RTP voice packets transmitted since the call began
because the call might have been placed on hold.
Estimated average RTP packet jitter (dynamic delay that a
packet encounters when going through the network) observed
since the receiving voice stream was opened.
Maximum jitter observed since the receiving voice stream was
opened.
Number of RTP packets discarded by the receiver.
Missing RTP packets (lost in transit).
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.
Average MOS LQK score observed for the entire voice stream.
Lowest MOS LQK score observed from start of the voice
stream.
Baseline or highest MOS LQK score observed from start of
the voice stream.
Call Statistics screen
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