[Asterisk-Users] Echo Cancelation on TE110P

[Michael Sampson]

It is my understanding that when you hear echo the problem is on the 
other end. So if a caller complains they hear echo that is something you 
should be dealing with, but if you hear echo that is the phone companies 
fault. Now with a normal phone, the phone company will only echo cancel 
long distance calls. For local calls the latency is not high enough to 
matter. But with VOIP the added latency creates echo even for local 
calls. I think the reason you hear it on some numbers and not others is 
that the phone companies are doing echo cancel on  some of those calls 
and not on others.

Michael Sampson
Information Systems Manager
Customer Contact Services
msampson at yourccsteam.com
952-936-4000



Kerry Garrison wrote:

> On a 55 station install onto a Cox PRI with a TE110P (Polycom 501 
> phones) a few users are complaiining about echo. According to the 
> users, the echo seems to be phone number dependant. They claim that 
> certain phone numbers have echo while others dont. Are there any 
> tuning parametes like there is for a TDM400 card?
>  
> Kerry Garrison
> Director of Technical Services
> **Tech Data Pros - Orange County's Mobile IT Service Provider
> **(949) 502-7819 x200 - //kerryg at techdatapros.com// 
> <mailto:kerryg at techdatapros.com>
> //http://www.techdatapros.com// <http://www.techdatapros.com/>
>  
>
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