I'm setting up a TLS connection for the purposes of sending secure SIP. The remote gateway (Twilio) doesn't always send a finish message and as such those requests fail. Everything else appears to match between successful and failing messages.
My question is whether I can safely say that this issue is definitely with the remote provider, rather than something that can be fixed on the client side.
Is this perhaps a typical scenario which I am not familiar with, perhaps an attempt to re-use an old session or similar? Any advice would be very much appreciated, i'm really looking for confirmation that I'm reading this correctly.
Thanks for taking a look!