[asterisk-users] Echo cancellation on DAHDI

[Vinícius Fontes]

----- "DHAVAL INDRODIYA" <dhaval.it01034 at gmail.com> escreveu:

> Dear All,
> 
> How can we know the On board supports echo cancellation
> 
> I have Digium, Inc. Wildcard TE410P quad-span T1/E1/J1 card 3.3V (rev
> 02) board
> 
> all working fine but sometimes i got echo when user are calling a PRI.
> 
> is there any way to know on board echo cancellation .
> 
> 
> regards
> 
> Dhaval

Do you have an echo cancelling module attached to that board? If so, all you need is to set echocancel=yes and echocancelwhenbridged=no on your chan_dahdi.conf. If you don't... well you should!

Anyway, you can turn on the echocancelling via software with echocancel=256. I strongly recommend using OSLEC in that case. You'll need to patch your DAHDI in order to use it, but it's totally worth it.