[Asterisk-Users] TE411P Really Bad Echo

[Anthony Rodgers]

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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