For context, we are replying to a comment putting that marketing into question. Therefore the "RTFA" card is not in your deck to play. (I say with a tongue in cheek tone: no flamewar intended!)

In particular GP said:

> For colleagues, after the first month or so, everyone will pretty much find the best way to approach others. If you still need a device for that, then there’s a problem in communication that you need a persistent device all the time.

I think I agree. Back in 2003 my boss said "when my headset is on I am busy". He had to remind everyone a few times. But that worked.