Ah this is dangerous! They shouldn't have made it possible to initiate any calls from the headset itself.
It fits my ear well, and does not come off even if I explicitely shake my head left, right, up and down.
I think this device is pretty cool. So far it's working great - I paired them on the first try...
If I put the V551 on silent mode, will I still hear some sort of sound on headset that I have an incoming call? That would be "tres" stealth!