A conference call is a telephone call in which people from different locals can easily chat each other up. This usually involves using special codes and systems and a separate conference call provider. Basically this is like that first of all phone technologies, the party line, in which you could listen in on people you didn’t know talking about things you didin’t understand. Most TV commercials that feature conference calls have people using systems that don’t work. One recent conference call has a woman telling off a boss only to learn that the mute button on her phone doesn’t work.…