Hello I have an IMS scenario where offer/answer is complete, users are in talking state using one simple audio stream.
(Much sooner than) half the session time, B side client is attempting to refresh the session using re-INVITE without SDP. A acknowledges the refresh with 200OK without SDP As far as I know this is not an error as session refresh does not require SDP,, however it is rejected by the servers with cause invalid offer/answer. Should I include the SDP nonetheless and keep the same session id & version in the origin header? thanks br Manolis _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
