Panasonic KX-TGM420 Operating Instructions Manual page 173

Problem
The indicator on
the handset or
base unit flashes
slowly.
The base unit
beeps.
The unit does not
work during a
power failure.
Cause/solution
• New messages have been
recorded. Listen to the new
messages (page 149).
• New voicemail messages have
been recorded. Listen to the new
voicemail messages (page 149).
• New messages have been
recorded. Listen to the new
messages (page 149).
• The batteries inserted in the
base unit are depleted. You can
insert 2 alkaline batteries into
the base unit to provide backup
power. Remove the alkaline
batteries and reinsert the
rechargeable batteries when
power is restored (page 35).
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