Hi, I'm realizing that "received" and "rport" are completely useless in SIP TCP:
- The client MUST reply using the existing conecction that creates the incoming request. So for now "received" and "rport" are not used at all. - If the connection fails during the reply then the UAS/proxy must perform steps in RFC3263 as failover, and those steps mean sending the response to "sent-by". So again "received" and "rport" is not used. - Also take in mind that when a UAC establishes a TCP connection with UAS it uses an arbitrary source port so if the connection fails the UAS cannot open a new connection to that original source port (except using "alias" extension that it's not relevant now). So, the conclusion is: "received" and "rport" parameters are completely useless in SIP TCP, is it? Thanks for any comment. -- Iñaki Baz Castillo _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
