asterisk users - Feb 2011 - echo when calling to the pstn

Hello all.

I have a asterisk implementation (asterisknow 1.7.1), with a card with 2 FXO
interfaces.

When I call (or receive a call) from the pstn, I ear echo. This happens if I use
a softphone or IP phone, and does not happens if the call is internal.

Can you help me with this issue?

Best regards,
Vitor Flausino

I'm assuming you haven't googled for solution, please go through
http://www.voip-info.org/wiki/view/Asterisk+echo+cancellation and
extra links in that article.

If that article were not helpful, please provide more information of
you setup, such as what analog card are you using, are you using
software or hardware echo canceller, how does your chan_dahdi.conf
look like, etc.

On Tue, Feb 8, 2011 at 3:11 PM, Vitor Carlos Flausino
<vitor.carlos.flausino at gmail.com> wrote:
> Hello all.
>
> I have a asterisk implementation (asterisknow 1.7.1), with a card with 2
FXO interfaces.
>
> When I call (or receive a call) from the pstn, I ear echo. This happens if
I use a softphone or IP phone, and does not happens if the call is internal.
>
> Can you help me with this issue?
>
> Best regards,
> Vitor Flausino
>
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Ye Liu (AKA @jaux)

http://jaux.net