Installation guide

TROUBLE ON SEVERAL TELEPHONES
Dialing
Symptom: Dial tone is present on all lines, but users cannot dial out on all lines.
Possible Cause
Recommended Action
1. The Tone/Pulse option for
1.
Set the Tone/Pulse switch on the control unit
outside lines may be
to Tone for Touch-Tone dialing service or
misadministered.
Pulse for rotary service.
2.
If the red Warning light on the
2.
Unplug the control unit. (On Model 820, set
control unit is on, the control the On/Off switch to Off instead of unplugging
unit may need to be reset.
the control unit.) Make sure all modules are
firmly seated in the control unit slots. Plug in
the control unit again. Wait 5 minutes.
B2-4