Re: [Sip-implementors] REFER received before ACK, What should be done !!

2018-09-11 Thread Karthik Sasupalli
Tech ; Ajit Kumar Singh Subject: Re: [Sip-implementors] REFER received before ACK, What should be done !! Karthik, You desk phone seems to be broken. It should handle REFER or re-INVITE before ACK. There is no reason in any RFC why UA should generate an error message for the next INVITE

Re: [Sip-implementors] REFER received before ACK, What should be done !!

2018-09-06 Thread Roman Shpount
Karthik, You desk phone seems to be broken. It should handle REFER or re-INVITE before ACK. There is no reason in any RFC why UA should generate an error message for the next INVITE or REFER request, if it is received before ACK from the previous transaction. The main purpose of ACK is to stop

[Sip-implementors] REFER received before ACK, What should be done !!

2018-09-06 Thread Karthik Sasupalli
Hi All, I have a scenario, where the REFER to an INVITE is received before the ACK. There is a Desk Phone and a Call server. The call is initiated by the Call server. Desk Phone <-- INVITE <-- Call Server Desk Phone --> 180 Ringing -->Call Server Desk Phone --> 200 OK/SDP --> Call Server Desk