Reset and restart Yealink phones via keypad
RESTART THE PHONE
Press button X for at least 10 seconds and wait for the restart confirmation message to appear: press OK to accept, X to reject.
RESET TO FACTORY SETTINGS
Press the OK button for at least 10 seconds and wait for the reset confirmation message to appear: press OK to accept, X to reject.
ASSIGN STATIC NETWORK PARAMETERS WHEN THE PHONE IS STARTED
As soon as the telephone is powered, press and hold the “Loudspeaker” button (hands-free) until the network parameters appear. Here you can set: IP address and subnet mask, gateway IP, IP address of the TFTP server from which to possibly provision. Press X to cancel operations and restart the phone.