Madelene is riding Passenger Elevator #1 while talking on her cell phone. The FLS Director does not know that Madelene is riding the elevator. A fire alarm activates and the Fire Alarm Control Panel is reset after the fire alarm is deemed unwarranted and while the system was "off-line". The Fire Department responds to the building. The FLS Director asks the Fire Department Officer why they responded to the building. What will the Fire Department Officer tell the FLS Director is happening in the building? What communication system has failed in the building? Explain your answers.