Hi We have recently implemented the 3cx system. We were less familiar with the system during the installation phase. Later after the system is in production, we realized the implementer did not configure the fqdn and the clients are not reachable from outside of LAN. I have public IP and public ip is reachable to the hostname of the 3cx VM. What I understood is, in order to configure the fqdn, I have to reinstall the whole system! My questions are: - What is the best way or steps to reconfigure the FQDN without losing any of the configurations including Dial plan, call cost settings, extensions, extension properties etc? - What is the recommended method of FQDN? means, managed by 3cx or fqdn my own? I am in 3cx maintenance contract till mid 2018. Thank you for your advise.