Operation Manual

Mike
1:08
31
4.4 Setting the volume
Use the volume up / down keys +/- on the side
to set the volume during a conversation.
The volume setting will be indicated on the
display and saved automatically.
The volume setting controls the acoustic and wireless
signal at the same time.
The volume Boost key
By pressing the Boost key on the side during a
phone call, the handset will provide up to
15 dB extra volume in addition to the normal
volume. The Boost symbol will appear on the
display.
Set the volume for the Boost-mode using
the volume up / down keys +/- .
This mode is not available in hands-free or
headset mode.