The system, which is fully funded by the UK Government, uses the mobile phone network to broadcast an urgent message to all compatible handsets in a geographical area where there is an emergency incident to help save lives. The messages themselves will contain information about the incident and how to respond to reduce the threat to life. Audible alerts will be received even where a device is switched to silent.
On Sunday 23 April 2023 there will be a national test of the Emergency Alerts service . The alert will be clearly marked as a test and no further action will be required other than to switch the alert off once it is received.
For more information on the Emergency Alert System, please click here to read the guide.