POWERING THE CALLER ID UNIT
The unit can operate on batteries only, but you must use the AC power supply in order for the new call indicator light and the display backlighting to work.
INSTALLING THE BATTERIES
Install 4
Disconnect the line cords from the back of the unit and wait a few seconds for the unit to go into standby.
1.Open the battery compartment door by pressing on the door and sliding it in the direction of the arrow.
2.Insert 4
3.Replace the battery compartment door securely.
1
2
2