Cisco 8831 Administration Guide

Cause
The conference phone might be interacting with certain types of older fluorescent lights in the building.
Solution
Move the conference phone away from the lights or replace the lights to resolve the problem.
Audio problems
Choppy speech or sound
Problem
A user complains of choppy speech or a metallic sound coming from or going to the far end.
Cause
There may jitter in the network, or too many dropped packets.
Solution
Check the AvgJtr and the MaxJtr statistics. A large variance between these statistics might indicate a problem
with jitter on the network or periodic high rates of network activity. For more information about displaying
statistics, see Call Statistics screen.
Choppy speech or sound when using wireless microphones
Problem
A user complains of choppy speech or metallic sound coming from the wireless microphones.
Cause
Too many dropped packets.
Solution
Check the RF environment
Echo on the far end
Problem
The far end hears echo.
Cause
You may be experiencing one of the following:
•
The conference phone is not on a flat and stable surface.
•
The wired or wireless microphones are too close to the sound base.
Cisco Unified IP Conference Phone 8831 Administration Guide for Cisco Unified Communications Manager 9.0
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Troubleshooting and maintenance
Audio and display problems

Cisco 8831 Specifications

General

Brand	Cisco
Model	8831
Category	IP Phone
Language	English