Predictive outbound hitting 408 Request Timeout on Ohio BYOC failover

Architect v2024.3.1 kicks the predictive campaign to the Ohio BYOC pool when the primary trunk taps out. Console’s throwing a 408 Request Timeout right after the INVITE hits the proxy, but SIP reg’s looking solid. Outbound routing rules are set to failover, yet the dialer just hangs there doing jack all. Logs attached.