[Asterisk-Users] Will Echo problems EVER be solved, I'm scared

[Soner Tari]

Hi,

I'm not the OP, but I had a similar problem, in my case fxotune ran 
successfully for just one out of 3x FXO modules, but the coefficients were 
all 0's. My kernel is  2.6.11 on CentOS 4.1.

So I'm curious if 2.6 kernel (instead of 2.4) has any input in this whole 
echo issue, not just fxotune.

Yesterday I switched to KB1 echo canceller, it is by far the best. But today 
I had a similar experience to Eric Rees's Strange Echo post. After 
transfering to another internal line, echo starts. My theory is that after 
transfer some characteristics of the internal connection change, especially 
the Tx voice (the person talking on our side changes). So if the echo 
canceller is too committed to the voice of the first person answering the 
line (the operator), that would be quite expected. I don't know how KB1 or 
other echo cancellers work, but if I'm right, it would be better if echo 
canceller readjusted itself after transfer. Sorry if that's plain wrong. Can 
somebody comment please?

I'm really interested in all posts in this thread and others or documents on 
echo.

Btw, thanks Eric Wieling for the Cisco link.
Soner

----- Original Message ----- 
From: "Derek Whitten" <derek at kfuq.net>
To: "Asterisk Users Mailing List - Non-Commercial Discussion" 
<asterisk-users at lists.digium.com>
Sent: Friday, August 26, 2005 2:39 AM
Subject: Re: [Asterisk-Users] Will Echo problems EVER be solved, I'm scared


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