[council] Disconnected (partly off topic)

During our last teleconference I noticed that several people including myself were disconnected after two hours, or, I think, a minute or two less than two hours. It did not come as a total surprise to me, since this happens to me more often during normal phone calls to foreign countries using a cheap carrier. I am curious to why this is (I am guessing that cheap carriers have leased lines per 2-hour periods of guarenteed connection or that they pay less if they don't use a line over two hours) and whether this is something worldwide. If this will happen more often, it may be good not to have a vote after exactly two hours.