This was a time at my store this morning when the music cut off the PA speakers went "ding" music came back on cut off again and the PA speakers went "ding". This kept happening throughout a certain song. It would cut off and the speakers would ding. An employee was jokingly saying that someone was calling on the phone and no one was answering. When the dinging stopped the employee jokingly said they hung up and was wondering if they were gonna call back.