> You should send a failure (you quoted the text that requires you to do > so). The failure you should send is 500 (which is used for all > situations where CSeq is l.e. a previously seen CSeq), officially > called "Internal Server Error", but would be better called "Out of > Sequence" (and which should be a 4xx error, but that's another > matter).
My thanks to everyone who responded. It does seem to me that a 4xx error would be more appropriate, but the consensus seems to be that 500 is most appropriate in this case, so that's what I'll do. Thanks again, Paul _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
