Have you seen those people who seem like they are always talking to people on their hands free earbuds?  It seems like they are talking to themselves until you get closer and realize they are on the phone.  What they ate for lunch or their afternoon plans to get their nails done must be important enough to justify tying up their friends ear.   Long before the unlimited cell phone plan God invented the unlimited prayer connection.  No expensive hardware or bluetooth connection is necessary to talk to the most important person in the universe!