Call forwarding to Twilio - Fail / Forbidden

Hi all,
I’m trying to setup the forwardig of call to twilio Sip Domain without succes.
I set on twillio this it subnet on acl:
and on flynumber i set to forward to the SIP URI of twilio domain with in detail te phonenumber from flynumber without +.
When we call the number we see on call history (flynumber site) the Fail status with Forbidden Reason. Why?

Hi @fidoka

Sorry but the number is not active yet

With Italy numbers, you’ll need proof of address in the city you ordered a number. We sent you a list of Italian cities we can register under your account and other info

Please check your email when you can