The soft phone concept is cool but to use this headset you have to make it your default audio device for mic and speakers.  This means your regular speakers can't be used at the same time and switching involves control panel, sounds, reset default, etc.  you're not going to have time to do this when a call is coming in.  If you leave your speakers as default (cuz you spent a lot of money on them and love to use them for music, etc.) you can still use this device as the mic only.... but then your callers hear themselves talking with you.  Platronics tech support says you can adjust the volumes to minimize this but the end result is never business quality.  So.... unless you are ready to give up use of your speakers this item is a piece of crap!