Try this before the last battery removal option Restore the settings. Press "Menu" and select "Settings." Highlight "Settings" using the caller ID up and down. Press "Select" and select "Reset Settings". GE is a wireless phone manufacturer that manufactures a variety of landline phones. When installing a multi-line GE cordless telephone system in your home or office, you will have to register the bases before you can use the devices. Registering your GE phone to the base is easy to achieve in a few simple steps. explanation Press the "Menu / OK" button or the "Program" key on your GE phone to access the main menu. Go to "Phone settings" and press the "Menu / OK" button or the "Program" key. Go to " Registration "or" Registration of the handset "Press the" Menu / OK "button or the" Program "key. Select the" Yes "option to confirm your decision to register the telephone and press the" Program "key. Press and hold the" page "on the base of the phone for five seconds. Look at the screen of your GE cordless phone to know if you have to press the" Program "key again. If so, you will be prompted to do so. Wait until your cordless phone reads "Registered" and then place it in its base.