Be prepared to hear a tone similar to an ambulance siren coming from your phone at 1:55 pm on November 28th.
That's when the CRTC will once again conduct a test of the new Alert Ready system.
The wireless alert system sends a message to our smart phones warning of imminent safety threats such as tornadoes, floods or Amber Alerts.
The first test in May failed to reach some mobile phone users across the country.