⁨Knock Knock⁩.

⁨Victims of domestic violence often cannot speak on the phone without their abuser hearing, so emergency calls fail or never happen.⁩

⁨Inspired by Morse code, Cheil Worldwide and the National Police Agency set up a system in which a caller dials 112 and presses a number twice. Police then send a link that lets them see the scene through the phone's camera and track its location, and victims can share details through a page disguised as a Google search. The system was taught to 4,800 police call-handlers and promoted through blogs, the government's YouTube channel, outdoor ads and posters and vlogs on beauty channels.⁩