Installation guide

TROUBLE ON SEVERAL TELEPHONES
Ringing
3.
Control unit is defective.
3.
Make sure all cords are labeled before
unplugging them from the control unit.
At the control unit, unplug the line cord for the
line with trouble. Plug the line cord for
another outside line into that jack. See if the
outside line will ring. If it will not, the control
unit probably requires repair. If the system is
a Model 820, the Line Module may be
defective.
4.
Line buttons are mislabeled.
4.
Lift the handset at each voice terminal and
press the line button for the line that does not
ring. If there is no dial tone, the line may not
be assigned to that voice terminal. Either
assign that line to the voice terminal or
instruct the user to program the button with a
feature.
5.
User programming of line
5.
See if voice terminals are programmed for
ringing options is incorrect.
“no ring.”
(This applies only if the system
has a feature cartridge.)
a. Slide T/P switch to P (program) position.
b.
Check red light associated with the line
that does not ring. The red light
indicates how the line is programmed for
ringing:
On = ringing
Flashing = delayed ring
Off = no ring
If the red light is off, the line is
programmed for “no ring.” Change it by
touching the line button until the light is
on or flashing.
c.
Slide T/P switch to center position.
B1-4