APPENDIX
Error Messages
· The system takes no action for the keys pressed during display of the messages
(Error message, Line back...) that resides on the display for a specific period of
time.
· In the event that an incorrect operation is done while in the programming mode,
the error message is displayed in two lines for one second. The user receives
erroneous action tone from the handset during that period. No key pressed in the
meantime is detected and the telephone returns to the upper menu after the error
display is over.
· Whenever the SERIAL ERROR (XX) message is seen in the top line of the
telephone, this indicates that the telephone cannot communicate with the
exchange. In that case, the upper group keys and special keys of the telephone do
not work. In such cases call your authorized reseller.
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