Getting started
Battery installation
Before using the telephone, you should install four new AA alkaline batteries (not included) to provide memory backup and enable the use of some features. The four AA batteries are required for the following features to work: speakerphone, mute, flash, caller ID, display, menu, directory, redial, speed dial, clock, Audio Assist® and the INCOMING CALL light.
If you unplug the telephone line cord from the telephone wall jack when there are no working batteries installed, the following information will be lost: caller ID history, directory entries, speed dial entries, and all settings in the feature menu. We recommend you install new batteries before initial use and change the batteries soon after the low battery icon 
appears.
CAUTION: Always unplug the telephone line cord before installing new batteries.
1.Press the large tabs on the battery compartment cover as the arrows indicated below to open the battery compartment cover.
2. Detach the battery compartment cover from the telephone base.
