[Asterisk-Users] Problems with IAX2?

Andres andres at telesip.net
Tue Apr 6 21:22:16 MST 2004


>Not sure what the issue is, but at least in my case, its more then just a
>jitter buffer. I understand the timestamp comment as well. In running
>several different experiments, it seems to be mostly a one-way problem
>with the 7960's but haven't gathered enough to back that 100%.
>
>Just ran two conversations across the same iax link; Cisco choppy and
>unusable, snom fine.
>
>  
>
It all depend on whether the phone relies on that TimeStamp value for 
jitter calculations.  I know Sipura needs them (and probably Cisco too 
by the looks of your case), but phones like Grandstream ignore it 
completely (and probably SNOM too).  These phone will have perfect audio 
just by sheer luck since they are ignoring a piece of information that 
could be valuable but is "corrupt" in this case.

>Rich
>
>
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