Jack is an on-call service technician for a large medical supply company. At 3:00 a.m. he is awakened to the sound of his BlackBerry signaling an incoming email. The email from the dispatcher alerts him to an emergency call from a local hospital. The anesthesia cart in the operating room is malfunctioning, and there is an operation scheduled for 7 a.m. that morning. Jack sends an email back to the dispatcher letting them know he received the service call, and then he phones the client to get the details and to let them know he's on the way.