[Asterisk-Users] TE411P Really Bad Echo

[Matt]

try sangoma carrier grade 104d hardware EC card. we're using it ourself.

Best Regards

Matt
----- Original Message ----- 
From: "Anthony Rodgers" <Anthony_Rodgers at dnv.org>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users at lists.digium.com>
Sent: Tuesday, February 07, 2006 12:57 PM
Subject: Re: [Asterisk-Users] TE411P Really Bad Echo


> For what it's worth, we have been going through very similar issues
> with a TE411P - with Digium support, we have basically gone as far as
> we can with the HW EC, and are now using MG2 with much better results.
>
> We have a Ditech EC box on order.....
>
> Regards,
> -- 
> Anthony Rodgers
> Business Systems Analyst
> District of North Vancouver
> Web: http://www.dnv.org
> RSS Feed: http://www.dnv.org/rss.asp
>
>
> On Feb 7, 2006, at 7:36 AM, Matthew Fredrickson wrote:
>
> >
> > On Feb 5, 2006, at 9:36 PM, Stagg Shelton wrote:
> >
> > > I just implemented a system using a TE411P hardware echo cancellation
> > > card. Per Digium, I setup zaptel.conf, and zapata.conf the same way
> > as
> > > I always have. To my surprise calls out to the PSTN had a terrible
> > > echo. 1 - 2 second delay, and quite clear. The echo was so bad that
> > I
> > > had to remove the hardware echo cancellation module from the card.
> > We
> > > are only using the 1st span of this card right now, and we have a
> > > tdm400p with 4 fxs modules installed as well.
> > >
> > > If anyone has experience with this card, can you tell me if I am
> > > missing
> > > something.
> >
> >
> > 1 to 2 seconds?! That's ridiculously huge. I don't think you'll find
> > a echo canceler anywhere that can fix your echo problem. If it gets
> > better with the VPM disabled, then definitely contact Digium
> > tech-support about it.
> >
> > Matthew Fredrickson
> >
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