AT&T 210 BLK Conference Phone User Manual


 
4
Getting started
Press the large tabs on the battery compartment cover as the arrows
indicated below to open the battery compartment cover.
1.
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.
Detach the battery compartment cover from the telephone base.2.