Lucent Technologies MERLIN LEGEND Release 5.0 Maintenance And Troubleshooting Manual page 82

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting 555-650-140
Telephone Problems
Fixing Telephone Problems
Replace the wiring between the module jack field and the telephone

to see if there is a wiring problem.
Analog Multiline Telephone Problems
If telephone LEDs and/or ringing tones do not work properly on analog multiline
telephones, follow the steps below.
Move the T/P switch on the left-hand side to the T (test) position.

You should hear tone ringing, and the red and green LEDs on the
terminal should flash alternately.
If the LEDs do not light, replace the telephone with one that works.

If the problem is resolved, go to Step 4.
If the LEDs do not light, retest the original telephone.

Plug it directly into the appropriate jack on the control unit, using a cord
that is known to be working.
If this resolves the problem, replace the original cord (or local power unit,
if used).
Move the T/P switch to its normal position.

The ringing tone should stop, and the LEDs should be off.
If any part of the test fails, replace the telephone.

If the time appears on the display but incoming call information does not,
move the T/P switch on the side of the telephone to the center position.
Voice Transmission Problems
If the telephone does not receive tones, check the control unit and wiring with a
telephone that works.
Issue 1
June 1997
Page 3-4