Hi Michael,
that's exactly the trick I wanted to try to solve this issue (see my previous email)...but I will have to dig to see how difficult is to implement.
regards, bogdan
Michael Ulitskiy wrote:
Hi Klaus,
I guess, you're right. I didn't know that. Then openser should keep CANCEL in transaction context until transaction expires (probably until wt_timer expires) and transmit it if provisional response is received during that time. Thanks for clarification.
Michael
On Tuesday 02 August 2005 07:52 pm, you wrote:
Hi Michael!
RFC3261 page 54: If no provisional response has been received, the CANCEL request MUST NOT be sent; rather, the client MUST wait for the arrival of a provisional response before sending the request.
Thus, the proxy should withhold the CANCEL until a provisional response is received. If no provisional response is received for a certain time, the proxy may discard the whole transaction.
Also take a look at section 16.10 and section 16.7 step 10.
regards klaus