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The following sections describe various difficulties that might occur, possible
causes for the difficulty, and procedures you can follow to try to solve the
problem. Programming procedure names are shown in boldface type; for more
information on a specific procedure, refer to the procedure name in Chapter 5.
Problems with System Phones
System Phone Does Not Ring
Possible Cause 1: Ringer volume control is set too low.
What to do: Press the volume control button while the phone is idle and the handset is in
the cradle.
If the phone rings increasingly louder, the problem is solved.
If the phone still does not ring, go to Possible Cause 2.
Possible Cause 2: The Do Not Disturb or Call Forwarding feature is turned on.
What to do: Check to see if Do Not Disturb or Call Forwarding is turned on.
If Do Not Disturb or Call Forwarding is turned on, turn it off.
If Do Not Disturb or Call Forwarding is not turned on, go to Possible Cause 3.
Possible Cause 3: Line Ringing is programmed for No Ring or Delayed Ring.
What to do: Check the Line Ringing setting for the extension.
If Line Ringing is set for No Ring or Delayed Ring, change the setting if appropriate.
If Line Ringing is set for Immediate Ring and this phone is part of a combination
extension, see “Problems with Combination Extensions: Phone Does Not Work
Properly.”
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If Line Ringing is set for Immediate Ring and the phone is on an extension by itself,
go to Possible Cause 4.
Possible Cause 4: Phone is faulty.
What to do: Unplug the cord from the base of the problem phone and plug the cord into a
phone that you know rings properly.
If the replacement phone rings properly, the problem phone is defective. Call the
AT&T Helpline* to arrange for a replacement.
If the replacement phone does not ring properly, call the AT&T Helpline*.
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In the continental U.S., help is available at 1 800 628-2888. Outside the continental U.S., call your local
AT&T Authorized Dealer.
6-2
Troubleshooting