Operations; Boost Function/Amplifying Incoming Sounds - Clarity Alto Mode D'emploi

Your unit is designed to adhere to the new TIA-4953 standard, which defines the specific
audio performance that compensates for audio loss, across mild to severe categories .
Your Alto has superior audio performance and ringer loudness, to ensure that you never
miss a call or a spoken word again .
Boost function – Amplifying incoming sounds
1. While on a call, press the BOOST button to engage the amplifier . The ALTO has a
BOOST button and a VOLUME control wheel that control the loudness of the receiver .
(See Figure 6). Once the BOOST button is pressed or the VOLUME control wheel is
rolled up past level 9), an extra level of amplification is added over the entire range of
the Volume Control . During a call, the BOOST button can toggle the Clarity Power am-
plifier function on or off according to your needs . The BOOST button will reset auto-
matically every time the phone is hung up . The BOOST light will illuminate (red) while
the Boost function is activated .
WARNING: LOUD VOLUME. To protect hearing, lower the
volume before engaging the Boost function.
2. Adjust the VOLUME wheel to achieve the desired sound level (to 50dB of amplifica-
tion) . The VOLUME control wheel adjusts the level of volume in the handset both in
Boost Off and Boost On modes . Once the BOOST mode, the Alto provides up to 50dB
of gain . (See Figure 7)
3. Press the TONE button to customize your hearing experience . Since we all have dif-
ferent hearing preferences, we suggest exploring each setting to find the one most
comfortable for you . These five preset settings, along with the custom setting and
the volume amplification, are part of the Digital Clarity Power (DCP™) technology .
(See Figure 8)
Figure 6

OPERATIONS

Figure 7
Figure 8
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