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

[Peter Fern]

We had no problems with < Asterisk-1.2 (I believe the last pre-1.2 
version we ran was 1.0.8), so yes I would assume it's a problem in 1.2 
only.  Unfortunately we are also reliant on some of the other features 
in 1.2, so we'll stick with SIP for the time being.

Matt wrote:

>Interesting.   I mean I'm sure this vendor HAS an issue with IAX... 
>but I guess I'm just curious what brought it out and if it's an issue
>with his implimentation of asterisk.  At any rate.. it is odd that I
>only have IAX issues to him and not someone else.  Of course, I (and
>the other company) are both running asterisk 1.0.9 ish.  So perhaps
>the IAX issue is only recent in 1.1--> ?
>
>
>On 3/20/06, Peter Fern <pete at keypoint.com.au> wrote:
>  
>
>>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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>>>>
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