It sounds frustrating to see the old server URL still being used after you've patched it and confirmed the update in the phone number details. Since the logs are still showing the old URL and VAPI is erroring out, it might be helpful to double-check if there are any caching mechanisms or propagation delays that could be affecting the update. If everything looks correct on your end, sometimes giving it a bit of time or restarting related services can help. Let me know if you notice any changes or if there's any other detail you think might be relevant!