AT&T 3.0 Telephone User Manual


 
Fixing Telephone Problems
12 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.
1 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.
2 If the LEDs do not light, replace the telephone with one that works.
If the problem is resolved, go to Step 4.
3 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).
4 Move the T/P switch to its normal position.
The ringing tone should stop, and the LEDs should be off.
5 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.
3-4 Telephone Problems