Hi! In ACK generated by client transaction for non-200 responses the bis clearly states that the topmost Via should be used when constructing the ACK request. What about the ACK generated for 200 OK? I guess that this kind of ACK should have a unique Via branch ( not matching the ACKed INVITE's branch) but I couldn't clearly derive it from bis. Could someone please clarify what is the correct behaviour ? Thanks in advance, Br, Andras
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