Plantronics VistaPlus DM15 Notice D'utilisation page 3

Important
To ensure safe operation, please read the supplied
'Important Safety Instructions' booklet before
installing and using your VistaPlus Adapter.
WELCOME
Thank you for selecting the VistaPlus™ (DM15)
Adapter from Plantronics. VistaPlus is a headset
adapter that incorporates SoundGuard Digital
technology that is designed to offer increased
protection against loud sounds for headset users.
VistaPlus is compatible with most business
telephones and includes standard adapter
functions including headset/handset switch,
microphone mute and receive volume adjustment.
SoundGuard DIGITAL provides two distinct types of
protection. Firstly, it monitors and predicts the daily
personal noise exposure, and adaptively limits the
maximum volume to ensure the action levels
specified by current and imminent EU legislation
are not exceeded.
Constantly on guard, it also identifies and
eliminates sudden loud sounds. Network
interference, a fax machine tone, or even a whistle
blown by a malicious caller are all instantly
reduced to a level similar to background noise.
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