Cisco 7821 Administration Manual page 188

Cisco IP Phone Web Page
Item
Rcvr Reports Received
(see note)
Rcvr Report Time
Received
(see note)
Voice Quality Metrics
Cumulative Conceal Ratio
Interval Conceal Ratio
Max Conceal Ratio
Conceal Secs
Severely Conceal Secs
When the RTP Control Protocol is disabled, no data generates for this field and thus displays as 0.
Note
Cisco IP Phone 7821, 7841, and 7861 Administration Guide for Cisco Unified Communications Manager 10.0
(SIP)
174
Description
Number of times RTCP Receiver Reports have been received.
Most recent time when an RTCP Receiver Report was received.
Total number of concealment frames divided by total number of speech frames
that were received from the start of the voice stream.
Ratio of concealment frames to speech frames in preceding three-second interval
of active speech. If voice activity detection (VAD) is in use, 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 five percent concealment events (lost
frames) from the start of the voice stream.