Appendix
4-13
4
Appendix
Problem
Probable Cause
Possible Solution
The unit does not ring.
The display flashes the
following message.
Set Time & Date
• An outside (CO) line
number is not programmed.
• The Ringer Volume is set to
“OFF”.
The system internal clock is
not working properly.
• To program outside (CO) line
numbers, refer to the Installation
Manual.
• Increase the Ringer Volume. Refer
to “Initial Settings” (Section 1.1).
Consult with an authorized
Panasonic Factory Servicenter.
If a power failure occurs...
Your system enables a conversation between a specific outside (CO) line and extension
(Power Failure Transfer) and supports system data backup.
Power Failure Transfer
A specific extension can be automatically connected to a specific outside (CO) line. This
provides outside (CO) line calls between the following extension and outside (CO) line.
Outside (CO) line 1 is connected to extension jack number 01.
• All other conversations will be disconnected during a power failure.
• Proprietary telephones (PT) cannot be used during a power failure. A single line
telephone will work in the event of a power failure. Connect the single line telephone
to extension jack number 01.
• When power is restored after a power failure, your system automatically restarts,
maintaining as much of the previous system data as possible.
Troubleshooting
