Dear All, I have a scenario where our vendor includes Q.850 in proviosnal response (183 w/sDP) in every call scenerio, doesnt matter whether number is invalid, busy, unlocatted.
In other words if they want to give us busy they will send 183 w/SDP and in that they will add "reason header" and will specify that "user-busy". like as below (there was no annoncement). *IP/2.0 183 Session Progress* Via: SIP/2.0/UDP 1.1.1.1:5060;branch=z9hG4bK07Baab30f0ac4907e59 Record-Route: <sip:2.2.2.2:9131;transport=udp;lr> Call-ID: 285680242_96347916@1.1.1.1 From: <sip:7038805449@1.1.1.1:5060;cpc=ordinary>;tag=gK072fb580 To: <sip:1234568745@2.2.2.2:5060>;tag=sbc040328yrzaa3-CC-1021 CSeq: 17205 INVITE Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,INFO,PRACK,NOTIFY,MESSAGE,UPDATE Contact: <sip:2.2.2.2:9131> P-Early-Media: sendrecv *Reason: Q.850;cause=17;text="User busy"* Content-Length: 0 Can you please advise if this is the correct behavior. Is there any draft or document is there which i can go through it? Regards, Nitin Kapoor _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
