Which ports must I open to access Hosted by 3CX instances?

We have a very strict corporate firewall setup on the internet. Which ports must I allow (outbound traffic)  to access all services for instances hosted by 3CX?

To access your instance hosted by us, you must allow traffic to the given IPv4 and IPv6 addresses of your instance. You can find them in your Management Console >> Dashboard >> Information.
Then allow outbound traffic to the following ports:
  • TCP 443 (default) or 5001 if present in the restored backup
  • TCP & UPD 5060
  • TCP & UDP 5090
  • TCP 5061
  • TCP 5062
  • UDP 9000-10999