Web access remotely via FQDN domain is available in Yeastar P-Series IPPBX. For the sake of security by default super administrator is not allowed to access web interface with FQDN link, you would encounter warning like image below if you are trying to log in.
Access PBX from local network, navigate to FQDN configurations - Remote Access - Web Access. Configure any type for Access Type accordingly and choose proper account.
- Access Type: Allowed Account
- Select Account: Administrator and other trusted users
- Access Type: Restricted Account
- Select Account: Do not choose 'Administrator'