Hi Paul,
So you are saying that when an INVITE is sent with no offer, a 183 with SDP can be sent in response?
Can you point me to where exactly this is documented please, as my problem is I cannot find anything in RFC 3261 or any other documentation
to confirm expected behaviour for the 183?
Cheers,
Steven


Paul Kyzivat wrote:


Steven Egan wrote:

Hi,
Is it valid to include the SDP in a non reliable 183 sent in response to an Invite with no initial offer?


It is ok to include the SDP in the 183 when the Invite contains the initial offer, but RFC 3261 is not clear as to whether the SDP can be included when no offer is included in the initial invite.


I believe the answer is YES. The *same* SDP should be sent in the first reliable response.

Paul

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