13.2.2 Resetting Device to Factory Settings via Phone UI
You can reset the phone to factory setting on phone UI by path: Menu → Advanced Setting (default
password: 123456) → Reset → Reset to Factory Settings.
Press OK button to restore the phone to factory configuration.
13.2.3 Resetting Your Device to Factory Settings on Keyboard
For the M3/M5/M7 DeskPhone, you can reset the phone to factory settings by long pressing Conference Key
over 10s while the phone is in idle status. Press OK button when the warning page pops up to reset the
phone to factory settings.
For the M8 DeskPhone, you could long press Headset Hard Key to trigger resetting the phone to factory
settings.
Note: All the configuration on the phone will be erased after the phone rebooting.
13.3 One Key Reboot
The phone provides a quick way to reboot. You need to press the C key for 10 seconds.
An inquiry box will pop up to ask whether to restart.
OK: By pressing “OK”, the deskphone will reboot in a few seconds.
Cancel: By pressing “Cancel”, the deskphone will cancel the operation.