Avaya 18d Mode D'Emploi

Possible Cause:  Date, day, and time are not set properly.

What to do: Re-enter the date, day, and time using System Date (#101), System Day
(#102), and System Time (#103).

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If the display is correct, the problem is solved.

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If the display is still not correct, see “System Phone Does Not Work.”

Possible Cause 1: Phone needs to be reset.

What to do: Unplug the cord from the base of the problem phone and (with the handset
hung up) plug the cord in again.

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If the phone works properly, the problem is solved.

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If the problem remains, go to Possible Cause 2.

Possible Cause 2: The telephone is defective.

What to do: Unplug the cord from the base of the problem phone and plug the cord into a
phone that you know works.

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If the replacement phone works, the problem phone is faulty. Call the AT&T Helpline*
to arrange for a replacement.

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If the replacement phone does not work, go to Possible Cause 3.

Possible Cause 3: The telephone cord is defective.

What to do: Unplug the cord from the base of the phone and the wall jack. Replace the
cord with a cord that you know works.

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If the phone works, the cord is faulty. Call the AT&T Helpline* to arrange for a
replacement.

If the phone does not work, and it is part of a combination extension, see “Problems

If the phone does not work and it is not part of a combination extension, call the
AT&T Helpline.*

*

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.

Troubleshooting