[Asterisk-Users] Echo, ISDN And FXS

[Philipp von Klitzing]

Hi again Peer!

> >>I have an installation utilizing * with an AVM C4 (ISDN card). Using 
> >>softphones (SIP and IAX) I have sound problems, like echo.
> > 
> > Did you test if a good soundcard and especially a really good headset 
> > make a difference?
> 
> I've done tests with a Labtec headset on my site, and another user used 
> a different headset on another site with similiar results. The sound 
> card is onboard (ASUS A7N8X).

That most likely is a cheap = not good soundcard then. Next to that the 
most common problem for softphone echos are soundcard mixer settings, and 
that is often not so obvious as that it could be found and fixed within 
10 sec.

> Do you have a specific combination (headset+soundcard) which minimizes 
> echo and other sound problems?

Sorry, no I don't, but maybe we can ask around and gather a few tips from 
others in this list.

Cheers, Philipp