[asterisk-users] Zapata/DAHDI Disable Hardware echo canceler based on SDA number / displan

[benoit plessis]

On Tue, Jun 17, 2008 at 10:56:06AM -0500, Kevin P. Fleming wrote:
> Benoit Plessis wrote:
> > Is it possible on a TE220p to deactivate the hardware echo canceler at 
> > will ? (With a function in the dialpan for example)
> > example for fax SDA ,beeing able to shutdown the echo canceler could 
> > give better results don't you think ?
> 
> All echo cancelers using Zaptel/DAHDI already disable themselves when
> FAX or modem communications are used, based on reception and detection
> of the CED tone that FAX machines and modems generate to make that
> happen. You can tell this happened by looking at the channel in Asterisk
> using 'zap show channel' or 'dahdi show channel' as it will show you
> that the echo canceler was disabled automatically.
> 

Karamba !

It mean than that my last option is to put all three digium cards in one box and hope,
that it'll fit and that it'll work better :(

(actually i'm using one server with two cards (TE220, B410) which is linked with an (slinear)
IAX peer to another server with one TDM800 to talk to the fax machine.

-- 
Benoit