I've had terrible audio quality with IAX2 on Asterisk 1.2, there was a thread about it some time ago and many people reported the same thing. I think the thread was entitled 'problem with new jitterbuffer implementation' or something similar. However, it did not appear to be the jitterbuffer as we tried with/without/old jitterbuffers, with/without trunking, and none made any difference. We moved to SIP and everything has been lovely since.

Matt wrote:

That's kind of what I suspended.  Either that, or in THEIR install
there was a bug and for whatever reason they can't upgrade at the
moment, which may be the case.


On 3/20/06, Martin Joseph <[EMAIL PROTECTED]> wrote:
On Mar 20, 2006, at 3:47 PM, Matt wrote:

I received an e-mail from a vendor who says:

"We have recently become aware of an issue in the chan_iax2
implementation of IAX2. This issue leads to degraded audio quality.
Due to this we are urging everyone to move to SIP."

I don't want to discount what this person is talling me, but I'm
curious to know why I would only be having issues connecting to his
servers, and also what exactly the issue is (if anyone knows).   I was
always under the impression that IAX2 was a better way to connect
servers and was more advanced (jitterbuffer/etc) then sip was.

Can anyone comment on this?
Which vendor?  I use IAX2 for connections to both Nufone and Teliax,
and they both are working great.  I don't know what the vendor is
referring to,  but I suspect without more info that it's FUD.


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