[Asterisk-Users] FAX x Echo Cancellation

[Gary Mart]

On Sat, Jun 26, 2004 at 07:57:21AM +0900, Isamar Maia wrote:
> 
> I installed a TDM04b and a TDM40b with aggressive echo suppression
> and it's working almost perfectly.
> The problem is that all extensions are fax machines and people uses it for
> both purposes, voice and fax. AFAIK, I cannot use aggressive suppression
> for fax extensions, but when I turn it off terrible echos happen.
> Is there any workaround for this case?

Do TDMoE to a second asterisk machine.  Run echo cancellation on the second
machine and connect your voice users to the second machine.  This may 
require extra hardware, but AFAIK echo cancellation can not be turned on
and off channel by channel, especially at runtime.

Gary

> 
> Thanks,
> Isamar
> 
> 
> 
> 
> 
> 
> 
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