Lucent Technologies MERLIN LEGEND 6 - Manual (Page 350)

MERLIN LEGEND Communications System Release 6.0
System Manager’s Guide
555-660-118
Issue 1
February 1998
Troubleshooting the System
Page 8-4 Some Phones Are Dead (No Dial Tone or Lights)
8
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.
WARNING:
!
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 4: If an MLX telephone is not working, it may be plugged into an
MLX extension jack that is programmed for CTI (Computer Telephony Integration)
link.
What to do: Follow the procedure for printing an Extension Information Report to
determine whether the jack is programmed for CTI link. See Chapter 6, “Managing
the System,” or
System Programming for details.
■ If the jack is programmed for a CTI link and you wish to retain the link, plug
the MLX telephone into another available MLX jack.
■ If the jack is programmed for a CTI link and you wish to remove the link
programming, unplug the telephone from the MLX jack. Then see
“Removing a CTI Link” on page 6–93 or System Programming for the
correct procedure.
■ If the jack is not programmed for a CTI link, go to Possible Cause 5.
Possible Cause 5: The telephones may be defective.
What to do: Test each telephone by replacing the dead telephone with a similar
telephone that you know is working properly.
■ If the replacement telephone receives dial tone and its lights function, then
replace it with the original telephone and check again. If the original
telephone still does not receive dial tone and its lights do not function, 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 receive dial tone and its lights do not
function, there may be a problem with the system wiring or the control unit.
To test one possible wiring problem, go to Possible Cause 6.