Trying to communicate with a mix of people who are A) standing too far from the conference phone or B) driving to work and thus drowned out by road noise, not t

Trying to communicate with a mix of people who are A) standing too far from the conference phone or B) driving to work and thus drowned out by road noise, not to mention paying attention to either you or the road but not both -- is a waste of time. Plus, people who are not dialed in can't read body language and so they end up talking too long because they can't see how bored everyone else is but nobody wants to be the one to tell them to shut up.