AT&T 240 Telephone User Manual


 
20
New Call Light Does Not Go On
Make sure you have installed three AA alkaline
batteries with correct polarity.
Replace old batteries with three new ones.
Screen is Blank
Make sure you have correctly installed three AA
alkaline batteries.
The screen is blank until you receive a call.
Make sure all line cords are correctly
connected.
The phone does not display the time and date
until the first call is received.
You must subscribe to service from your local
phone service provider to see call information
on the screen (see “About Caller Identification”
in BEFORE YOU BEGIN).
IN CASE OF DIFFICULTY
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