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

Soner Tari list at kulustur.org
Sun Aug 28 16:55:06 MST 2005


> I'd suggest turning off echotraining on the FXS altogether, and perhaps 
> even
> killing the echocanceller on FXS entirely.  (you won't be getting 
> significant
> echo from the FXS, and the FXO should be handling it anyway) -- 
> echocancelwhenbridged might be an interesting thing to play with as well.
>
> e.g. (assuming port 1-3 are FXO and port 4-7 are FXS)
>
> echocancel=64
> echocancelwhenbridged=yes
> echotraining=800
> channel => 1-3
>
> echocancelwhenbridged=no
> channel => 4-7

Andrew,

I am sure you know that in zapata.conf parameter settings are in effect 
until specifically overridden later on in the file. In the first paragraph 
you suggest that I turn off both echotraining and echocanceler on FXS 
channels, so may I correct your example, that is, do you mean something like 
the following?:

echocancel=64
echocancelwhenbridged=yes
echotraining=800
channel => 1-3

echocancel=no
echocancelwhenbridged=no
echotraining=no
channel => 4-7

Please correct me if I'm wrong, in your example echocanceler would still run 
on connections other than TDM (such as FXS->SIP). Did you knowingly mean it? 
With my additions above, FXS channels would never use echocanceler. Right?

Thank you guys for all the help and comments. Rich's last comments were 
quite enlighthening, as always. I never knew echocanceler could be used on 
FXS channels. Sorry for my ignorance (but nowhere in docs or wiki could I 
see this information, I should have thought about it, my bad).

I'll try and post the results.
Soner




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