[Asterisk-Users] Problem with chan_iax.c implimentation causes bad audio?

[Peter Fern]

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 <ast at stillnewt.org> 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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