Lucent Technologies MERLIN LEGEND Release 6.0 Maintenance And Troubleshooting Manual page 86

MERLIN LEGEND Communications System Release 6.0
Maintenance and Troubleshooting 555-660-140
Telephone Problems
Fixing Telephone Problems
Replace the faulty module.
! 
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
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.
Step 4.
Issue 1
February 1998
Page 3-4