try sangoma carrier grade 104d hardware EC card. we're using it ourself. Best Regards
Matt ----- Original Message ----- From: "Anthony Rodgers" <[EMAIL PROTECTED]> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users@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 > > > > _______________________________________________ > > --Bandwidth and Colocation provided by Easynews.com -- > > > > Asterisk-Users mailing list > > To UNSUBSCRIBE or update options visit: > > http://lists.digium.com/mailman/listinfo/asterisk-users > > _______________________________________________ > --Bandwidth and Colocation provided by Easynews.com -- > > Asterisk-Users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users