Don't be surprised if your phone suddenly goes off — Canada will be conducting its emergency alert system test nationwide this week. A release states that the emergency alert test is also meant to increase public awareness about the system and to spark discussions about emergency preparedness. The alert will test the system's functionality, and Canadians will be notified that it's only a test. However, you may be asked to acknowledge that you received the emergency alert before you can use your mobile device again. It's also an opportunity to check your phone’s compatibility with the alert system.