On Tue, Mar 23, 2010 at 12:30 PM, Manoj Priyankara [TG]
<[email protected]> wrote:
> Dear All,
>
> What is the difference between the INVITE message used for call features 
> (such as Call hold, transfer etc) and the INVITE message used for codec 
> negotiation ( such as T.38 fax relay) ?



One is spelled inVITe another INvitE

Besides that remarkable difference  :-)  :

Call hold and transfer are in-dialog operations Codec negotiation is
during call setup. Codec re-negotiation is in-dialog.

The rest of the differences have to do with the SDP.

Ranga.





>
> Thanks
> BR,
> Manoj
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-- 
M. Ranganathan
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