Re: Interesting interoperability with Quintum of gnugk.

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> conclusion I reached is this: Codec Mis-Implementation. The g729 codec
> on the Quintum box is marked as g729ab, which means annex a and b 
> complient. Now, if you were to lock the g729r8 codec on the Cisco (this
> is what most VoIP carriers use), the Quintum will not be able to 
> negotiate the codec correctly. I've seen this in dozens of cases.

If you want them to interoperate, you should enable g729ab on both sides. If 
the codec is marked as 'ab' it doesn't mean it will support g729, g729a, 
g729b, g729ab...

Andrey.


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