Boris Bakchiev wrote:
I enabled echo cancellation in Zapata.conf to see if I can improve the
situation and users started reporting "warping bubble" (description I
got from one of the users) sound on calls from PABX->Asterisk->PRI (and
other way).
I was expecting that asterisk would disable its echo cancellation once
it find on-board module.
If you have 'echocancel=no' in zapata.conf, then there is no echo
cancellation, software or hardware.
If you have 'echocancel=yes', then there is echo cancellation. If you
have hardware available, it will use it, otherwise it will be done in
software.
I suspect you had the hardware echo canceller disabled without realizing it.
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