[asterisk-gui] Echo Canceling

Andrew Latham Andrew.Latham at TuxTone.com
Fri Oct 9 12:55:24 CDT 2009


Bob

On to the fun topic of audio quality....  The (echo, glare, volume)
canceler is getting "trained" during your call so that is why it fixes
its self.  If you are using POTS for your trunk lines then you will
want to work on the DAHDI/Zaptel settings to resolve any issues.  You
may be dealing with glare instead of echo.

http://en.wikipedia.org/wiki/Echo_(phenomenon)

To fix you can enable and fine tune settings in your DAHDI/Zaptel
settings files and restart both Asterisk and DAHDI/Zaptel.


~
Andrew "lathama" Latham
Andrew.Latham at TuxTone.com

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On Fri, Oct 9, 2009 at 1:43 PM, Bob Crandell <robert at assuredcomp.com> wrote:
> Hi,
>
> My next challenge is canceling the echo when I make or receive a call.
> Right now the echo lasts for the first few seconds after the call is
> answered then stops.
> There is no echo when calling an extension.
> Under Configure hardware is software echo canceller.  I tried a couple of
> things there that didn't make a noticable difference.
> Under Advanced Options/SIP Settings there is Jitter Buffer which might have
> made a tiny difference.
>
> What are you guys doing about this?
>
> Thanks
> --
> Bob Crandell
> Assured Computing, Inc.
> 541-868-0331
> ComputerBase
> 541-349-0404
>
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