[Asterisk-Users] T1 echo canceller

[Raymond McKay]

I've got a call in now with the company and they are going to send me
additional info and pricing on the unit.  Assuming this device isn't
prohibitably expensive I will probably purchase a model to try.  In this
configuration, the device would hook up as such

Asterisk-------Echo Canceller-------Adtran-------PSTN and would be
configured for near end echo cancellation.

I have to imagine that the cost on this unit would have to be quite high so
a software solution might be the more viable.

BTW, Mark thanks again for working on that aggressive suppressor with me.  I
was thinking, as a way to make it work even better, that adding some comfort
noise during cancellation might make its suppression methods seem less
harsh.

Raymond McKay
Partner
Support Services
rmckay at supserv.com

----- Original Message -----
From: "Mark Spencer" <markster at digium.com>
To: <asterisk-users at lists.digium.com>
Sent: Friday, February 21, 2003 10:20 AM
Subject: Re: [Asterisk-Users] T1 echo canceller


> > I have a Adtran Atlas 750 channel bank with 8 FXO and 16 FXS. This
> > connects via T1 port on Atlas to T1 port on Asterisk Server. If I put a
> > T1 echo canceller like the one in the link below, would that clean up my
> > VoIP to FXO calls?
>
> I'm not familiar with that brand, but that's the right idea.  Are you
> still having trouble with echo, even with the AGRESSIVE_SUPPRESSOR option
> in the zaptel Makefile?
>
> Mark
>
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