Cisco 7970G Administration Manual page 198

Call Statistics Screen
Table 7-5 Call Statistics (continued)
Item
MOS LQK Version
Cumulative Conceal
Ratio
Interval Conceal Ratio Ratio of concealment frames to speech frames in preceding 3-second interval
Max Conceal Ratio
Conceal Secs
Severely Conceal Secs Number of seconds that have more than 5 percent concealment events (lost
1
Latency
Max Jitter
Sender Size
Rcvr Size
Rcvr Discarded
1. When the RTP Control Protocol is disabled, no data generates for this field and thus displays as 0.
Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones
7-18
Chapter 7 Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone
Description
Version of the Cisco proprietary algorithm used to calculate MOS LQK
scores.
Total number of concealment frames divided by total number of speech
frames received from start of the voice stream.
of active speech. If using voice activity detection (VAD), a longer interval
might be required to accumulate 3 seconds of active speech.
Highest interval concealment ratio from start of the voice stream.
Number of seconds that have concealment events (lost frames) from the start
of the voice stream (includes severely concealed seconds).
frames) from the start of the voice stream.
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.
Maximum value of instantaneous jitter, in milliseconds.
RTP packet size, in milliseconds, for the transmitted stream.
RTP packet size, in milliseconds, for the received stream.
RTP packets received from network but discarded from jitter buffers.
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