numbers.invalid_routing_url
The routing URL in the request body is malformed or uses an unsupported scheme.
numbers.invalid_routing_url is returned when the voice_callback_url or events_url in a routing update request is not a valid absolute HTTP(S) URL. All routing URLs must parse successfully, use http or https as the scheme, and have a non-empty host.
The URL is malformed, uses a scheme other than http or https (e.g., ftp://, ws://), has an empty host, or is not an absolute URL.
Provide a fully qualified absolute HTTP or HTTPS URL, e.g., https://your-server.example.com/webhook/voice.
{
"error": {
"code": "numbers.invalid_routing_url",
"message": "routing URL must be an absolute http(s) URL with a non-empty host",
"request_id": "req_01900000abc"
}
}