At 3pm BST, every phone in Britain is due to receive a loud alarm as a test for future emergencies
In case it isn’t clear, this isn’t a normal text message. It’s supposed to sound from any mobile phone connected to a network at 3pm exactly. It should make an ear-splitting shriek whether or not you’ve got your phone turned on to silent mode.
And even if you’ve managed to find the settings to turn off “extreme alerts” and “severe alerts” in your phone’s preferences menu, this warning will still sound: it’s a higher level of priority (known in other countries as a “presidential alert” but rebranded here to a “government alert”) that, on many devices, simply cannot be disabled.
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