Andreas Byström wrote:
> Hi I have two SDP questions:
>
> 1. Is it (according to RFCs) ok to send the SDP answer in a SIP response
> that is not reliable? I.e, is it ok to send SDP in 180 (that is not using
> PRACK)
Yes. But then it must be sent again (the same) in some reliable response
in order to complete the answer.
> 2. If sent in 180 (as above) is it then ok to send the exact same response
> again in 200 OK? Is it allowed to respond to a offer in two different
> mesages (first 180 and then 200). Does it matter if 180 is reliable (say
> that PRACK is used for 180, still ok to send SDP answer in 200?)
Once the answer is sent reliably it should not be sent again. If it is
sent in a reliable 18x, then if it is sent again in the 2xx that should
be ignored. But its a bad idea to do that because it could be confusing,
especially if between the reliable 180 and the 200 there is another
offer/answer exchanged using UPDATE.
Paul
> Regards,
> // Andreas
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