Cisco 6921 - Unified IP Phone Standard VoIP Administration Manual page 114

Streaming Statistics
Table 8-5 Streaming Statistics Area Items (continued)
Item
Interval Conceal Ratio
Max Conceal Ratio
Conceal Secs
Severely Conceal Secs
1
Latency
Max Jitter
Sender Size
1
Sender Reports Received
Sender Report Time
1
Received
Rcvr Size
Rcvr Discarded
1
Rcvr Reports Received
Rcvr Report Time Received
Voice Quality Metrics
Cumulative Conceal Ratio
Interval Conceal Ratio
Max Conceal Ratio
Conceal Secs
Severely Conceal Secs
1. When the RTP Control Protocol is disabled, no data generates for this field and thus displays as 0.
Related Topics
•
Cisco Unified IP Phone 6921, 6941, and 6961 Administration Guide for Cisco Unified Communications Manager 7.1 (SCCP)
8-10
Description
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.
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).
Number of seconds that have more than 5 percent concealment events (lost 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.
1
Last time at which an RTCP Receiver Report was received.
Total number of concealment frames divided by total number of speech frames received
from start of the voice stream.
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.
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).
Number of seconds that have more than 5 percent concealment events (lost frames) from
the start of the voice stream.
"Configuring Settings on the Cisco Unified IP Phone"
Chapter 8 Monitoring the Cisco Unified IP Phone Remotely
chapter
OL-19025-01