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regardless of the previous state of the
button. When the switch is in OFF posi-
tion, the Boost function is by default
OFF every time a call starts, the button
will not illuminate, and the Boost func-
tion will reset to OFF every time the
phone hangs up. During a call, the
BOOST function can be toggled ON or
OFF using the BOOST button, regard-
less of the state of the BOOST switch.
Ringer Controls
The C500 features an extra loud ringer
that can be tailored to the users needs.
Ringer Volume
Can be set to one of eight (8)
positions by pressing the RINGER
VOLUME UP or DOWN switch
located on the right side of the
telephone. The ringer settings can
be checked without making the
ringer sound by pressing and
holding the BOOST button for
three (3) seconds. The current
ringer settings will be displayed
on the LCD.
Ringer Style
Six (6) different styles of ring
cadence or speed are available.
Several of the styles are low
frequency making the sound easier
to hear. To select the ringer settings
press the RINGER STYLE button.
The style of ring will sound
automatically for approximately
two (2) seconds.
Ringer Off/On
This switch turns the ringer ON or
OFF. If the ringer is turned “OFF”
and the Visual Ringer is enabled,
the dial pad will flash and the LCD
will flash “RINGER OFF”.
WARNING: RINGER VOLUME IS VERY
LOUD AND CAN DAMAGE YOUR
HEARING. NEVER PUT YOUR EAR
CLOSE TO THE RINGER.
Operating Your Telephone
E
N
G
L
I
S
H
RINGER STYLERINGER VOLUME RINGER
OFF/ON
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