Re: [Sip-implementors] Canceling an INVITE still under processing

Hi Alan, 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

Re: [Sip-implementors] Canceling an INVITE still under processing

It is fine to cancel in the proxy alone. There are at least two relevant bits in 3261; Section 9.2 says “a stateful proxy might respond to it and generate some CANCEL requests of its own” … But you don’t need to send any CANCELs since you haven’t sent anything out. And Section 16.10: While a

Re: [Sip-implementors] Canceling an INVITE still under processing

Bogdan-Andrei Iancu 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)

[Sip-implementors] Canceling an INVITE still under processing

Hello, What should be the correct and most efficient way for a proxy to handle an incoming CANCEL for a INVITE still under processing. The detailed scenario is : * INVITE is received, the transaction is created, 100 Trying is sent back * the routing logic is invoked (this may take even 1

Re: [Sip-implementors] Canceling an INVITE still under processing

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 writes: Yes, the CANCEL is received