[Asterisk-Dev] Echo with iaxcomm

[sudhir1 at adelphia.net]

I tried all combination of echo cancellation, noise reduction and gain control, but the terrible echo wont go away. It is same with SIP phone. The problem is only when iaxcomm is one leg of the call.

Thanks,
-- sudhir


> Message: 2
> From: Michael Van Donselaar <mvand at vandonselaar.org>
> To: asterisk-dev at lists.digium.com
> Subject: Re: [Asterisk-Dev] Echo with iaxcomm
> Date: Wed, 24 Mar 2004 16:03:43 -0600
> Reply-To: asterisk-dev at lists.digium.com
> 
> On Wed, 24 Mar 2004 14:34:57 -0500, <sudhir1 at adelphia.net> wrote:
> 
> >I am trying to use IAXComm softphone on my linux PC. My Asterisk server =
> has a T1 card and Global Crossing's T1 coming to it. The prblem is when I=
>  get a call from a PSTN line to my iaxcomm, (or iaxcomm to PSTN), there =
> is a terrible echo on the PSTN side. As soon as you speak anything on the=
>  PSTN phone, background fills with loud hissing type sound, while =
> surprisiningly, voice on iaxcomm side is ok.
> >
> >I tried playing with different values of echocancel and echotraining but=
>  no luck. I did not mess with the default setting of codecs, hence they =
> both are using gsm I guess.
> >
> >Any suggestions on how to make it better?
> 
> Perverse as it may sound, try shutting OFF echo cancellation on  iaxComm.
> 
> I get best results with echo cancellation off, deNoise on.
> 
> What kind of results do you get with a sip phone?
> >