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.”
■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 problem phone and plug in a standard phone that you know rings properly.
■If the replacement phone rings properly, the problem phone is defective. Replace it.
■If the replacement phone does not ring properly, call the AT&T Helpline*.
Standard Phone Rings Back After Intercom
Call with No One at Other End
Possible Cause 1: The switchhook on the standard phone is accidentally pressed and released, causing a call to ring back.
What to do: Always replace the handset carefully. If the problem is not solved, go to Possible Cause 2.
Possible Cause 2: Automatic Line Selection is programmed incorrectly.
What to do: If one of the phones involved is a standard
Standard Phone’s Message Waiting Light Does
Not Light
Possible Cause 1: The standard phone is part of a combination extension that also includes a system phone with Background Music on.
What to do: Check to see if the system phone has Background Music on, because a standard phone’s message waiting light will not light if Background Music is on at the system phone.
■If Background Music is on, turn it off. If the standard phone’s message waiting light lights properly, the problem is solved.
■If Background Music is not on, go to Possible Cause 2.
✶In the continental U.S., help is available at 1 800
Troubleshooting
