Description
Item
Total number of payload octets received in RTP data packets by the device since
starting reception on the connection. Includes packets received from different
sources if this is a multicast call. The value displays as 0 if the connection was
set to send-only mode.
Rcvr Octets
Objective estimate of the Mean Opinion Score (MOS) for Listening Quality
(LQK) that ranks audio quality from 5 (excellent) to 1 (bad). This score is based
on audible-concealment events due to a frame loss in the preceding 8 seconds
of the voice stream.
The MOS LQK score can vary based on the type of codec that the
Cisco Unified IP Phone uses.
Note
MOS LQK
Average MOS LQK score for the entire voice stream.
Avg MOS LQK
Lowest MOS LQK score from the start of the voice stream.
Min MOS LQK
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
•
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
Streaming
Statistics, on page 75
Maximum value of instantaneous jitter, in milliseconds.
Max Jitter
RTP packet size, in milliseconds, for the transmitted stream.
Sender Size
Cisco Unified SIP Phone 3905 Administration Guide for Cisco Unified Communications Manager 8.6 (SIP)
77
Remote Monitoring
Streaming Statistics