SX allows you to restore a full backup of the device configuration.
KX3, KX2, KSX2, and KX2-101-V2 devices allow you to choose which components of a backup you want to restore to the device.
Protected: The entire content of the selected backup file, except the network settings (personality package) and, for KX3 and KX2 devices, the port configuration settings, will be restored to the device. You can use the Protected option to restore a backup of one device to another device of the same model (KX3, KX2, KSX2, and KX2-101-V2 only).
Full: The entire content of the selected backup file will be restored to the device.
Custom: Allows you to restore Device Setting, User and User Group Data Settings, or both.