screen will dim or turn off if the handset is not on the base station or charging cradle.
Check the signal strength
The number of bars indicates the connection status between the handset and base station.The more bars are shown, the better the connection is.
•Make sure the handset is connected to the base station before you make or receive calls and carry out the functions and features.
•If you hear warning tones when you are on the phone, the handset is almost out of battery or the handset is out of range. Charge the battery or move the handset close to the base station.
EN 9