3CX fqdn are controlled by 3CX, so no you can not use noip.com
If the customer does not have a fixed Wan IP address, under Settings - Network Settings - Change External IP Configuration to 'Dynamic Public IP'
3CX will update the dns, when the system updates the details at the next update time (Different version of 3CX, have different schedules - sorry can not remember them)
While your DDNS service will continue to "point" to the correct IP. It won't be used in any auto-provisioning of devices. If you were to manually provision a device using your DDNS, the Invite would probably be rejected due to the DDNS not matching the Domain name set in 3CX.
I have not looked into any ways around this.
Pro EditionIt all depends on which version you are using.
https://www.3cx.com/community/threads/can-not-choose-my-own-fqdn-on-setup.48728/
Thanks, i am not having any issue, i am just wanna know if its gonna work as i am planing to use dns for customers instead asking them to buy a domain, hosting etc.So, I would think that using a DDNS service would be no different that using your own Domain name. What issue are you running into?
https://www.3cx.com/docs/fqdn-management-allocation/
Thanks, i am not having any issue, i am just wanna know if its gonna work as i am planing to use dns for customers instead asking them to buy a domain, hosting etc.
Thanks
I know, but i was referring for customers who need perpetual licence and want a customized domain name.So the 3CX provided FQDN will work for this scenario. Customer doesn't need to purchase anything.
Founded in 2005, when VoIP was an emerging technology, 3CX has gone on to establish itself as a global leader in business communications.