Cisco 7941G - Unified IP Phone VoIP Administration Manual page 227

Chapter 8 Monitoring the Cisco Unified IP Phone Remotely
Table 8-5 Streaming Statistics Area Items (continued)
Item
Conceal Secs
Severely Conceal Secs Number of seconds that have more than 5 percent concealment events (lost
1
Latency
Max Jitter
Sender Size
Sender Reports
1
Received
Sender Report Time
1
Received
Rcvr Size
Rcvr Discarded
Rcvr Reports
1
Received
Rcvr Report Time
1
Received
Voice Quality Metrics
MOS LQK
Avg MOS LQK
Min MOS LQK
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE for Cisco Unified Communications Manager 6.1
OL-14620-01
Description
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.
Number of times RTCP Sender Reports have been received.
Last time at which an RTCP Sender Report was received.
RTP packet size, in milliseconds, for the received stream.
RTP packets received from network but discarded from jitter buffers.
Number of times RTCP Receiver Reports have been received.
Last time at which an RTCP Receiver Report was received.
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. For more information, see the
"Monitoring the Voice Quality of Calls" section on page
The MOS LQK score can vary based on the type of codec that the Cisco
Unified IP Phone uses.
Average MOS LQK score observed for the entire voice stream.
Lowest MOS LQK score observed from start of the voice stream.
Streaming Statistics
9-21.
8-17