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
