[SIPForum-discussion] forwarding more than one 2xx in a proxy server

[Young-Geun Park]

Hi, all

 

The following is described in 16.7.5, RFC3261(p110):

After a final response has been sent on the server transaction,

the following responses MUST be forwarded immediately:

- Any 2xx response to an INVITE request

(.....)

This step, combined with the next, ensures that a stateful

proxy will forward exactly one final response to a non-INVITE

request, and either exactly one non-2xx response or *one or more*

2xx responses to an INVITE request.

--

The server tx's state would transition to 'terminated' state because of
first 200 OK.

So I think that it is impossible for second 200Ok to be forwarded by the
same server tx.

 

I don't know why it is possible.

 

Best regards, 

Park

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20070202/f80c5143/attachment-0002.html>