Grandstream Networks 29578 - Manuel (Page 18)

1
The “AMPLIFY” button controls the increased volume level
and tone equalizer of the handset.
1. Press the volume
(p
or
q)
button to minimum, pick up
the handset and press the amplify button to turn on the
incoming voice amplifier . The indicator around the button
illuminates.
2. Adjust the volume by pressing the volume
(p
or
q)
button.
When the amplify button is pressed , an extra level of
amplified volume is added providing up to 40dB of gain
and level control. In standard use, the amplifier turns off
whenever you hang up the telephone. If you want the
amplifier to turn on whenever you pick up the handset ,
slide the Amplify Override switch located at the back of
the unit to ON.
NOTE: AMPLIFY feature is possible in both
Handset and Speaker Mode.
WARNING: This Product is designed for users
with hearing disabilities and automatically
amplifies the volume to the highest level
when the Amplify Override switch is set to
“ON”. If you wish to prevent the automatic
amplification, please turn the Amplify
Override switch located on the back of the set
to “OFF”.