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Using the Amplification Function
The CL600 Phone has an AMPLI button that controls the loudness and tone of the hand-
set. Without pressing the AMPLI button, you are able to amplify the handset up to 30 dB
of amplification. Once the AMPLI button is pressed, an extra level of amplification is added
providing 30 to 50 dB of gain and tone control.
Voice Amplification and Tone
Your CL600 Emergency Connect Telephone is equipped with a specialized amplification
function designed to fit your needs. You can adjust the volume and tone (sound frequency
range) of the incoming voice by simply adjusting Volume and Tone Controls. To use the
specialized amplification boost and tone control features, follow these directions.
1. Once you have dialed the phone or answered a call, press the AMPLI (amplify) but-
ton (See diagram #23). This turns the incoming voice amplifier ON. When the amplifier
is ON, you will see the red light on the left side of the AMPLI button light up. i.e.
AMPLI
2. Adjust the volume and tone to fit your needs by adjusting the VOLUME (See diagram
#24)
and TONE (See diagram #25) controls until you find the right levels for you. The
Volume Control increase sound volume. Slide the Volume Control to the right
to increase the volume and slide it to the left to decrease the volume. The Tone
Control allows you to fit your specific hearing needs. Slide the Tone Control to the
left to boost the lower frequency range. Slide the Tone Control to right to boost the
high frequency range. This allows individuals with BOTH high frequency and low
frequency hearing loss to use the CL600 Phone.
3. For additional, situational amplification, press and hold the HANDSET BOOST but-
ton located just below the earpiece on the inside of the handset (See diagram #26).
By pressing and holding this additional handset boost button, you get an extra 10 dB
gain of amplification. IMPORTANT NOTE: The Handset Boost button is designed
to be used when listening only. When you are ready to speak, release the button.
Press it again when the extra amplification is necessary. Failure to release the
DIAGRAM #23 – Amplify Button DIAGRAM #24 –Volume Control DIAGRAM #25 – Tone Control