[Asterisk-Users] 'Echo' - I'm sure a common topic

[Linus Surguy]

> > We're currently running a PSTN -> SIP gateway with Asterisk. We also run
> > IAX/SIP -> PSTN.
> >
> > We have performed a test where the call is routed
> >
> > UK PSTN -> Digium E1 card -> Asterisk GW -> SIP G.711 -> FWD -> X-Ten
> > softphone
> >
> > There is no echo at the softphone end, but severe echo on the PSTN side.
> >
> > We've also performed a test
>
>
> Its not perhaps as simple as acoustic echo on the softphone side
> heading back to the PSTN.  IE - speakers and microphone?  In which
> case, the user needs to get a headset...

I did ask them to turn down the speakers and retest and it appears the echo
was still there. I don't quite understand how the echo is being introduced
in this case.

Linus