Cisco 8831 Administration Guide

DescriptionItem
Total number of concealment frames divided by total number
of speech frames received from start of the voice stream.
Cumulative Conceal Ratio
Maximum concealment ratio that is observed during the call.Max Conceal Ratio
Number of seconds that have concealment events (lost frames)
from the start of the voice stream (includes severely concealed
seconds).
Conceal Secs
Number of seconds that have more than 5 percent concealment
events (lost frames) from the start of the voice stream.
Severely Conceal Secs
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.
Latency
Display Call Statistics screen
To display the Call Statistics screen for information about the last voice stream, follow these steps:
Procedure
Step 1
Press Settings.
Step 2
Select Status.
Step 3
Select Call Statistics.
Cisco Unified IP Conference Phone 8831 Administration Guide for Cisco Unified Communications Manager
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Model information, status, and statistics
Call Statistics screen

Cisco 8831 Specifications

General

Headset Port	No dedicated headset port
Wireless	No
Bluetooth	No
USB Port	No
Video Support	No
Audio	Full-duplex speakerphone
Connectivity	10/100 Ethernet
Power	Power over Ethernet (PoE)
Network Protocols	SIP
Weight	1.1 kg
Audio Codecs	G.711, G.722, G.729, iLBC
Network Ports	2 x Ethernet ports
Security	TLS