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VOLUME bOOsT
The Volume Boost feature makes voices sound louder
and clearer. This feature works only if you are on a call
using the corded handset.
To turn the Volume Boost feature on:
Press VOLUME BOOST while you are on a call using
the handset, the VOLUME BOOST icon displays on the
screen.
To turn the Volume Boost feature off:
Press VOLUME BOOST again, the VOLUME BOOST icon
turns off. This feature is also turned off automatically
after you hang up.
Note: If you press VOLUME BOOST during a call
using the speakerphone, the screen will show “FOR
HANDSET USE“.
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