Hello All, I'm looking to see if there is any RFC defining the standard around route advance/ re-routing of calls to the next available route based on the SIP failure response.
Looked into SIP Peering RFC6271 and RFC5486, however it doesn't cover the route advance requirements. To be specific, we have SIP trunks with a provider, when a call fails on the first trunk with SIP 50X UAC is doing route advance to the next trunk with that provider as per priority. UAC is generating a new call-id in the INVITE for call to the second trunk; however the peer expects the INVITE with the same call-id. Seeking your help for RFC to refer to conclude this, thanks in advance. Thanks, Amanpreet Singh. _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
