Phone & internet
Emergency alert texts: three kinds, and the one you cannot turn off
The alert that goes off on every phone around you at once is a government broadcast to your area, and its last line tells you what to do. There are three kinds. Safety guidance texts arrive with your ordinary message sound, emergency texts ring at the phone's full volume, and the top tier is kept for large-scale disasters that everyone has to receive. Only that top tier cannot be refused. The texts are written in Korean, and the government's Emergency Ready App shows them in 22 languages.
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Getting a Korean phone number
A tourist SIM gets you online today, but do not count on it for the identity check that banks and government sites ask for. LG U+ states plainly that its tourist SIM does not support it. A monthly plan in your own name is the route, and it starts with your Alien Registration Card.
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