Since it is always a good practice to deploy the SBC at remote locations, we would like the ability to provision phones at the remote location using DHCP options and/or manually pasting the provisioning link in the phone to offer more flexibility than only being allowed to assign from the phones menu. When deploying large amounts of phones, it is very time consuming to assign them one at a time and DHCP options is preferred. 3CX current implementation will lose the ability to remotely upgrade, reboot, and reprovision a phone via the SBC if the phone is not provisioned using the assign phone option under phones. This issue is not clearly documented and typically not realized until it comes time to upgrade firmware or the need to reboot/reprovision arises. Thank you for the consideration.