Description
Item
Version of the Cisco proprietary algorithm that is used to calculate MOS
LQK scores.
MOS LQK Version
Total number of concealment frames divided by total number of speech
frames that were 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
Display Video Statistics Screen
You can access the Video Statistics screen on the phone to display counters, statistics of the most recent call.
You can also remotely view the video statistics information by using a web browser to access the Streaming
Statistics web page. This web page contains additional RTCP statistics that are not available on the phone.
For more information about remote monitoring, see
Remote Monitoring, on page 247
.
Note
A video stream is a frame stream between two endpoints. If one endpoint pauses the video streaming, the
video stream stops even though the call is still connected. When the video streaming resumes, a new video
frame stream begins, and the new video data overwrites the former video data.
To display the Video Statistics screen for information about the latest video stream, follow these steps:
Procedure
Step 1
Press
Applications
.
Step 2
Select
Administrator Settings
.
Step 3
Select
Call Statistics
.
Step 4
Select
Video
. See
Video Statistics, on page 243
for a description of the Video statistics.
Step 5
To exit the Video screen, press
Exit
.
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager
10.0 (SIP)
242
Model information, status, and statistics
Display Call Statistics Screen
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