Phonak FreeCom 7100 User Manual page 12

C Control Box
C5 To control the ambient sound volume
The ambient sound mode can be changed with the change-mode button (Fig 15).
u Ambient sound on "ON" (by default mode) – in this mode, the ambient (surrounding) sound
is introduced in the earjack allowing to hear people not connected to the intercom system,
the engine (e.g. during landing phase) or alarms without removing the earshells from the
ears. Intercom is still working and can be adjusted with + - buttons (Fig 15).
u Ambient sound on "OFF" – in this mode, the ambient sound is completely damped. Intercom
is still working and can be adjusted with + - buttons (Fig 15).
u A short press (<2 sec) on change-mode button (Fig 15) allows to switch ambient sound
on "OFF" and "ON".
Fig 15
12
+ - buttons
change mode button
Ambient sound Volume Scale
12 dB (max)
9 dB
6 dB
3 dB
0 (default)
-3 dB
-6 dB
-9 dB
-12 dB
-15 dB
-18 dB
-21 dB (min)