AT&T 3 manual Possible Cause Corrective Action

Troubleshooting

Message lights on multiple telephones are not

turned On and Off in a timely manner—Continued

Possible Cause Corrective Action

The mail system port or the 206 extension jack is defective.

To test whether one of the elements is faulty:

1.Unplug port 2 on a two-port system, port 4 on a four-port system, or ports 5 and 6 on a six- port system from the mail system and connect the modular cord to a standard telephone.

2.Pick up the handset and verify that you have dial tone.

3.Dial any extension on the communications system:

■If the call goes through, there is a problem with the mail system’s voice processing card.

■If there is no dial tone, and you have a sufficient number of touch-tone receivers, there is a problem with the 206 module.

Call for support as described on page 6-5.

Verifying System Operation and Troubleshooting 6-13