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DESCRIPTION
This key is used to adjust the tone
level.
This key is used to disconnect a
call and re-establish dial tone or to
switch over to another caller if you
use custom calling services such
as call waiting.
This key is used for emergency
speed dialling.
Press this key to activate the
headset function.
This key is used to increase the
volume level.
This key is used to decrease the
volume level.
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