Appendix272 User Manual6.1.4 TroubleshootingIf a power failure should occur...Your System enables conversations between specific outside lines and extensions (PowerFailure Transfer), and supports system data backup.Power Failure TransferSpecific extensions are automatically connected straight to specific outside lines. This providesoutside line conversations between the pre-assigned extensions and outside lines:Outside line 01 is connected to extension jack number 01.Outside line 03 is connected to extension jack number 09.Outside line 09 is connected to extension jack number 17.• All other conversations are disconnected during a power failure.• Proprietary telephones (PTs) cannot be used during a power failure. SLTs can work inthe event of a power failure.• When power is restored after a power failure, your system automatically restartsoperation, maintaining as much of the previous system data as possible.Problem Probable Cause Possible SolutionNothing is heard in the hands-free mode.The "Headset" mode isselected.When the headset is not used, setthe mode to "Handset".Refer to "1.1.4 InitialSettings".The unit does not ring. • The outside number is notprogrammed.• The Ringer Volume is setto "OFF".• For programming outsidenumbers, refer to theInstallation Manual.• Increase the Ringer Volume.Refer to "1.1.4 InitialSettings".The display flashes thefollowing message:The system internal clockdoes not work properly.Consult with an authorizedPanasonic Factory ServiceCenter.Set Time & DateTHU JAN01 12:00A
