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The Clarity Power is turned on
by pressing the BOOST button as
described in the next section.
E. Boost Button
Press the BOOST button to turn the
amplifier on. When BOOST is on, it
returns to your previous amplifica-
tion setting and a red light will illu-
minate in the ring flasher area. When
you hang up the handset, it automati-
cally turns off the amplifier.
F. Ringer Volume
You may adjust the ringer volume
of your P400 phone to suit your
needs. When set on high, the ringer
produces a tone that reaches
approximately 75 decibels.
G. BOOST ON/OFF Switch
This switch will disable the reset
feature of the BOOST Clarity Power
button as follows:
(Located on the bottom of the base)
ON – When the Boost ON/OFF
switch is set to “ON”, the Boost
function will be ON every time a call
starts, and will default to ON every
time the phone hangs up. During a
call, the BOOST Clarity Power
button can toggle the Clarity Power
ON or OFF according to the
user’s needs.
OFF – When the Boost ON/OFF
switch is set to “OFF”, the Boost
function (Clarity Power) will be
OFF every time a call starts, and the
user will need to press the BOOST
Clarity Power button in order to
gain the extra level of amplification.
If the phone hangs up, the Clarity
Power will reset to OFF. During a
call, the BOOST Clarity Power but-
ton can toggle the Clarity Power
function ON or OFF according to
the user’s needs.
BOOST
CLARITY
POWER
FLASH
Figure 9
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Figure 10
Telephone Operations
Figure 11
RINGER
Off Lo Hi Lo Hi Output
RING TONE
AUDIO