Cisco 8821

DescriptionField
Number of missing RTP packets (lost in transit)Rcvr lost packets
Estimated average RTP packet jitter (dynamic delay that a packet
encounters when going through the network).
Avg jitter
Type of audio encoding received by the phone: G.729, G.711 u-law,
G.711 A-law
Receiver codec
Number of times this streaming statistics report has been accessed from
the web page (resets when the phone resets)
Receiver reports sent
Receiver report time sent
Number of packets received by the phoneRcvr packets
Total number of octets received by the phone.Rcvr octets
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.
The MOS LQK score can vary based on the type of codec that the phone
uses.
MOS LQK
Average MOS LQK score observed for the entire voice stream.Avg MOS LQK
Lowest MOS LQK score observed from start of the voice streamMin MOS LQK
Baseline or highest MOS LQK score observed from start of the voice
stream.
These codecs provide the following maximum MOS LQK score under
normal conditions with no frame loss:
•
G.711 gives 4.5
•
G.729 A /AB gives 3.7
Max MOS LQK
Version of the Cisco proprietary algorithm used to calculate MOS LQK
scores
MOS LQK version
Total number of concealment frames divided by total number of speech
frames received from start of the voice stream.
Cumulative conceal ratio
Ratio of concealment frames to speech frames in preceding 3-second
interval of active speech. If using voice activity detection (VAD), a
longer interval might be required to accumulate 3 seconds of active
speech
Interval conceal ratio
Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager
102
Phone Statistics
Streaming Statistics Web Page