Unclear on the concept

Several times a day, almost every day, for the last several weeks, someone announces over the hospital PA (in a very urgent agitated voice):

Attention all employees, staff, and medical personnel! May I have your attention, may I have your attention! Attention! May I have your attention! This is a test of the paging system. Please ignore this page. Again, may I have your attention please, may I have your attention please. This is a test, please ignore this page. Thank you.