Hi, please refer the fist 5 lines of section 16.7, rfc 3261
On 11/29/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > Hi, > > I have a query regarding late 1XX ( except 100 Trying ) responses received > by proxy on the same branch, where it has already received 200 OK. ( may > happen when next hop does forking ). > > What should be the expected behavior of proxy in this scenario? Should the > proxy absorb the 1XX ( except 100 Trying ) response or should it forward > the response. > > RFC 3261 says that : > Until a final response has been sent on the server transaction, the > following responses MUST be forwarded immediately: > ? Any provisional response other than 100 (Trying) > ? Any 2xx response > > "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 > > So dropping this type of 1XX response may not support mechanisms like > precondition etc in IMS. > > With Regards > Raghu > > > > *********************** Aricent-Private *********************** > > *********************** Aricent-Private *********************** > "DISCLAIMER: This message is proprietary to Aricent and is intended solely > for the use of > the individual to whom it is addressed. It may contain privileged or > confidential information and should not be > circulated or used for any purpose other than for what it is intended. If > you have received this message in error, > please notify the originator immediately. If you are not the intended > recipient, you are notified that you are strictly > prohibited from using, copying, altering, or disclosing the contents of > this message. Aricent accepts no responsibility for > loss or damage arising from the use of the information transmitted by this > email including damage from virus." > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
