The digital Vista base provides a handset/headset switch, volume control & mute button. It also has an instant 'break' plug which disconnects the headset without disconnecting the call.
This is the most widely sold unit in office applications.
There is a choice of headsets depending on what features you need:
Monaural (if you need to hear what is going on around you) or
Binaural (if you need to give your calls undivided attention).
Over the head fitting or over the ear.
Standard microphone noise cancelling (N/C) (if your working environment is very noisy.
Please contact Customer Service to check for compatibility.