Thank you Alan, Thank you Dale,
It seems we have a winning option here.
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 10.10.2016 17:09, Dale R. Worley wrote:
Bogdan-Andrei Iancu <[email protected]> writes:
Yes, the CANCEL is received before sending the INVITE to the UAS.
Technically speaking (as coding), we can do both - handle the canceling
process in the proxy (200 OK to CANCEL and 487 to INVITE, without
sending anything further to UAS) , or to delay the CANCEL until the
INVITE is send out (and send the CANCEL out to UAS too).
My question is more from the perspective of the SIP standard and best
practice for SIP.
Either behavior conforms to the standards. But it is surely better
practice to terminate the processing of the INVITE in the proxy before
the proxy sends any downstream INVITE.
Dale
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