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Line power mode (no AC power)
This telephone provides minimal functionality during a power failure. When
AC power is not available, the screen is blank and many telephone features
do not function. Only touch-tone dialing and handset volume adjustment are
supported. The telephone uses power from the telephone line to enable you
to make and answer calls using only the handset and dialing keys.
To make a call during a power failure
Lift the handset and wait for the dial tone. The screen shows NO AC POWER.
Dial a telephone number using the dialing keys. Wait to hear each key tone
and make sure the digit appears on the screen before pressing the next
dialing key.
To answer a call during a power failure
Lift the handset.
NOTE: The screen does not show incoming caller ID information during a power failure.
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Telephone operation
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