Lumen help
Resetting your phone to factory defaults clears the flash parameters and removes log files, user data, and cached data. There are two ways you can reset your SoundPoint series IP phone to the factory settings:
Depending on your phone model, press and hold the following keys simultaneously during the Updater/BootROM countdown process until the password prompt displays:
Important: The keys must be held for at least three seconds to trigger the special processing in the application.
To reset the SoundPoint IP phone's configuration to the factory defaults using the phone's menu, do the following: