Great suggestion. I'll try it ASAP. Where do I get fxotune?
Thanks! -N Matt Fredrickson wrote: > On Tue, Apr 12, 2005 at 10:16:16AM -0700, Noah Silverman wrote: > >>I have a strange echo problem. >> >>When speaking on the phone with someone, I hear MY OWN voice with a >>sever echo. The other party sounds perfect, and they can hear me >>perfectly. It is as if only the sidetone has an echo. >> >>I'm running * on a dedicated box, small LAN, and am using 4 FXO cards to >> connect the box to PTSN lines. My phones are Polycom IP500 SIP phones. >> >>The only echo cancellation stuff that I can find relates to cancelling >>echo between my system and the PTSN lines. Since the call is "perfect", >>I don't see how this would apply. >> >>Any suggestions?? > > > If you're using a TDM card, you might see if the fxotune program will help. > > It does impedance tuning of the card and finds the line impedance that has > the lowest mean power (i.e. least echo). I've been working on it for a while > and some people have had some success with it. > > Matthew Fredrickson > _______________________________________________ > Asterisk-Users mailing list > [email protected] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
