Bogdan-Andrei Iancu <bog...@opensips.org> 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 _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
