Geemarc CL330 Handbuch Seite 10

INSTALLATION
Note: Mains power is required to power the multifunction features of
the telephone. Fit 4 x AA sized batteries in order to save and use
stored numbers in case of mains power failure. Without mains or
battery power, the telephone can still be used to answer calls or to
manually dial out calls but all the multifunction features will not be
available. If no batteries are inserted, the low battery icon will
be displayed on the LCD display.
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