On Thu, 2009-02-12 at 14:40 +0100, Stephan Steiner wrote:
> Is there any guidance in an RFC with regards to that? I dug out an older 
> thread 
> (http://www.opensubscriber.com/message/[email protected]/6832126.html)
>  
> where Bala said those attributes are global, not codec specific. Is there 
> any reference for that (in that case we can open a case with the 
> manufacturer of the PBX)? For now we're attempting to remove the codec that 
> causes the inconsistency in the hopes that this will permit interoperability 
> but of course the end goal is to have it fixed in case G.723 ever becomes 
> needed.

I don't know of a specific reference, but the BNF (RFC 4566 section 9)
does not show any grouping of a= lines.

Dale


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