Suganya wrote:
Hi all,
This is a query about offer answer model and reliable provisional
response.
As per RFC 3261, when INVITE (UAC) does not send an offer, offer can be
made in the 200 Ok (UAS) and the answer can be sent in the ACK.
Is the same possible with reliable provisional responses also?
ie.,
1) when my INVITE does not contain an offer, can the UAS send
provisional responses - 180,183 with an offer in it?
According to RFC 3262, an offer MUST appear in the first reliable
message sent back to the UAC if the INVITE
did not contain one.
Kind regards,
Sigrid Thijs
2) If so, should the same offer be sent in 200 OK also?
Thanks in advance,
B.Suganya
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