Description
Item
Baseline or highest MOS LQK score from the start of the voice stream.
The following codecs provide the corresponding maximum MOS LQK scores
under normal conditions with no frame loss:
•
G.711: 4.5
•
G.722: 4.5
•
G.728/iLBC: 3.9
•
G729A/AB: 3.7
Max MOS LQK
Version of the Cisco-proprietary algorithm used to calculate the 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
Highest interval concealment ratio from start of the voice stream.
Max Conceal Ratio
Number of seconds that have concealment events (lost frames) from the start
of the voice stream (includes severely concealed seconds).
Conceal Secs
Number of seconds that have more than 5 percent concealment events (lost
frames) from the start of the voice stream.
Severely Conceal Secs
Estimate of the network latency, expressed in milliseconds. Represents a
running average of the round-trip delay, measured when RTCP receiver
report blocks are received.
Latency (see note)
Maximum value of instantaneous jitter, in milliseconds.
Max Jitter
RTP packet size, in milliseconds, for the transmitted stream.
Sender Size
Number of times RTCP Sender Reports have been received.
Sender Reports Received (see
note)
Last time at which an RTCP Sender Report was received.
Sender Report Time Received
(see note)
RTP packet size, in milliseconds, for the received stream.
Rcvr Size
RTP packets received from network but discarded from jitter buffers.
Rcvr Discarded
Number of times RTCP Receiver Reports have been received.
Rcvr Reports Received (see
note)
Cisco Unified IP Phone 8941 and 8945 Administration Guide for Cisco Unified Communications Manager 10.0 (SCCP
and SIP)
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