Incoming calls won’t be from/to a specific phone number? I would suggest using sngrep to see what the call actually looks like when it hits your server.
Will the calls always come from known source IP(s)? If so you can define a custom context in the trunk to assign a dummy DID so you can use I bound routes.
hadnt thought of that. thank you as always @lgaetz
I have a dedicated outbound CID tied to my number…
so I can make a context, set it on the trunk, set the DID to that same number, and match it in an inbound route.