Since this is a lively topic, I'll ask here...
How can I measure the interval between the original and the echo?
On Mon, 29 Aug 2005, Soner Tari wrote:
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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