14 Oct
2004
14 Oct
'04
10:32 a.m.
It depends. ACK for negative replies must have identical URIs as INVITEs.
Otherwise, it is dicated by record-routing. Loose routers (i.e., those that
implement RFC3261 as opposed to the obsoleted RFC2543) put peer's contact
in there, which is ideal. Strict routers put record-routing information
there. This alternative is valid in terms of an obsoleted spec.
-jiri
At 11:02 AM 10/14/2004, Richard wrote:
Hi,
I have a basic sip question. What�s the correct r-uri for ACK? I use stateful forwarding,
so all SIP messages pass through ser. I have seen two types of UA. Some use the contact
field of 200 OK response as the r-uri and other use the original r-uri for INVITE.
Is it a SIP violation to use the original r-uri of INVITE? The problem here is that if
there is a parallel forking for the INVITE, it might be sent to places other than the real
callee.
Any comment?
Thanks,
Richard
_______________________________________________
Serusers mailing list
serusers(a)lists.iptel.org
http://lists.iptel.org/mailman/listinfo/serusers
--
Jiri Kuthan http://iptel.org/~jiri/