..and more on this as I learn more about it.  Setting my ring to be simultaneous it will ring on the PC imageand on my mobile as well.  If I'm at the PC I can just take the call at my computer.  The inbuilt microphone in my HP tc4400 works really well and the call quality is better than speakerphone mode on the old skool BT Diverse phone on my home office desk.

Also when you accept the call or hit the video button, it waits until the call is accepted and then mutes your windows media player - putting your music on pause.  After the call is ended, it unpauses the music again.  This is a well thought through product.  Just ordered my new lifecam vx-6000 webcam which has built in audio too.