> Bis-05 lines 2370-2371 currently says "The tag in the To > header..... If the > forwarded response did not have one, it MUST NOT be inserted > by the proxy". > So a proxy cannot insert a tag of its own. Only UASes can > insert tags in the > To header. So if the proxy is simply selecting the "best" response for > *forward*, it leaves the tag alone. If it is contructing a > response as a > UAS, I suppose it could insert its own tag.
I'll say it again another way - the acts of "forwarding a non-200 response" and "responding as a UAS" are indistinguishable by the next upstream element. It truly does not matter if the tag gets modified in this case or not. The statement at 2370 is only important for responses that could create a dialog. It is unnecessarily restrictive as currently stated. I will correct it. RjS _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
