Consistently 3–5s (sometimes 7s) INVITE→realtime.call.incoming delay on SIP Realtime; accept is <1s. Any guidance?

Sorry this took so long to resolve, but I have reduced the latency on this. The full details are here Realtime API unreliable over SIP - #13 by Sean-Der

If you run into any other issues please @ me anytime and would love to help debug.