From: =?utf-8?q?I=C3=B1aki_Baz_Castillo?= <[EMAIL PROTECTED]> Hi, what should do a UAS if it receives an incoming UDP request indicating TCP in the top most Via header?
It should send the response by TCP. RFC 3261 is clear that the primary purpose of the Via is to indicate where the response should be sent. It also indicates that the Via contents have something to do with how the request was sent. But there have been implementations where the sending port and the receiving port are different, and those have been universally considered valid. So the Via address is not necessarily the same as the sending address. Of course, having the Via use a different protocol than the sending of the request is hazardous, as it won't work with recipients that don't support the Via's protocol. Dale _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
