The British government is set to test its emergency alert system for the second time, with 87 million devices set to be ...

Millions of mobile phones and tablets across the UK will emit a loud alarm and vibrate. The message will be received on 4G ...

The government's Emergency Alert System, which causes a 10-second siren to sound on UK mobile phones, is set to be tested later this year.

Emergency alert’ to be sent to UK phones as government tests alarm warning system - Senior government officials will also be ...

The alert causes phones and tablets to vibrate, read the alert aloud and emit a loud siren-like sound, even if the device is ...