[SR-Users] ACK not sent and rr-enforced

Alex Balashov abalashov at evaristesys.com
Tue Mar 15 17:24:57 CET 2011


On 03/15/2011 08:28 AM, Dominguez Jover, Ricardo wrote:

> Should I infer IPTEL.org is not implementing SIP RFC 3261 in the
> right way? It seems odd to me...

No, Ricardo, that is not the correct inference.  First, if the ACK is an 
end-to-end ACK (as for a 200 OK), it is generated by the sending 
endpoint, and the SER proxy is not responsible for constructing it. 
Secondly, there are various reasons why an ACK may have a request line 
not equal to the Contact URI established as the dialog target, having to 
do with backward compatibility with RFC 2543.

-- 
Alex Balashov - Principal
Evariste Systems LLC
260 Peachtree Street NW
Suite 2200
Atlanta, GA 30303
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/



More information about the sr-users mailing list