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Cisco Unified IP Phone 6921, 6941, and 6961 Administration Guide for Cisco Unified Communications Manager 7.1 (SCCP)
OL-19025-01
Chapter 7 Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone
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Cumulative Conceal Ratio Total number of concealment frames divided by total number of
speech frames received from start of the voice stream.
Interval Conceal Ratio Ratio of concealment frames to spee
ch 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.
Max Conceal Ratio Highest interval concealment ratio from start of the voice stream.
Conceal Secs Number of seconds that have concealment
events (lost frames) from
the start of the voice stream (includes severely concealed seconds).
Severely Conceal Secs Number of seconds that have more than 5 pe
rcent concealment
events (lost frames) from the start of the voice stream.
Latency 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.
Table 7-4 Call Statistics Items for the Cisco Unified Phone 6900 Series (continued)
Item Description