One) Get an eSIM card before you decide to visit Korea. You can buy this online and you'll get a QR code which you can scan along with your mobile phone the working day you permit for Korea. The current cellular phone models (apple iphone 10 and afterwards, for example) https://johne443tht6.boyblogguide.com/32172722/rumored-buzz-on-jejudo-island-tourism-제주도룸싸롱