Lucent Technologies manual Possible Cause 5 The telephone may be defective

MERLIN LEGEND Communications System Release 5.0	Issue 1
System Manager’s Guide 555-650-118	June 1997

8Troubleshooting the System

Phone Does Not Ring Page 8-10

Possible Cause 5: The telephone may be defective.

What to do: Test the telephone by replacing it with a similar telephone that you know is working properly.

■If the replacement telephone rings, then replace it with the original telephone and check again. If the original telephone still does not ring, then the original telephone may be defective. Call the Lucent Technologies Helpline at 1 800 628-2888 (consultation charges may apply).

■If the replacement telephone does not ring, there may be a problem with the system wiring or the control unit. To test one wiring possibility, go to Possible Cause 6.

NOTE:

The following procedure may help Lucent Technologies Helpline technicians analyze your problem. However, you should not perform this procedure unless you have experience removing the control unit cover and working with control unit extension jacks. Before proceeding, consult system planning Form 2a, System Numbering: Extension Jacks.

!CAUTION:

If you must check something on the control unit, proceed with caution. Avoid standing on a box or chair to reach the unit if it is installed out of easy reach. If you do not have a stable ladder or other proper equipment, do not proceed; wait for the Lucent Technologies technician.

Possible Cause 6: The wiring is faulty somewhere in the system.

What to do: Test the control unit module and jack where the telephone is plugged in.

■Identify the port where the nonfunctional telephone is connected. Identify a second port in the same module connected to a functional telephone and unplug the jack from the module. Plug the jack for the non-working phone into the extension jack that is now open. If the telephone works, call the Lucent Technologies Helpline at 1 800 628-2888 (consultation charges may apply).

■If the telephone still does not work, call the Lucent Technologies Helpline at 1 800 628-2888 (consultation charges may apply).