If you’re in the UK and have a mobile phone, then be aware that a siren-like alarm will sound on your handset on Sunday April 23 (if your phone is switched on) accompanied by an emergency alert message; however there’s nothing to worry about, other that possibly spilling your tea in shock.
It's a test of the UK’s new emergency alert system, and the message you get on your phone will say as much. You can simply tap ‘OK’ in response to the message to clear it – you’ll have to acknowledge the alert by doing that before you can use other functions of your device. Note that this is different to the emergency SOS feature already found on many of the best phones.
