What should I do to call Jeju Island in South Korea?

Do you want to call the number in your own area or Jeju Island? If you call your own area, you can ask the tour guide. Are you traveling alone? Or a tour guide? If the tour guide leads the team, you can ask her if the tour guide is an authentic Korean, which is more convenient. If the tour guide is from China, you can ask her questions and she will help you solve them. If you travel at your own expense, you can find a hotel and ask someone who knows Chinese, which may be helpful to you. If you call the number of Jeju Island, you can ask the person who knows Chinese to help you find the area code of Jeju Island. I don't think I need the number of Jeju Island, do I? Because Jeju Island is 9 1 1 if necessary, right? Actually, calling South Korea is similar to calling China, except that it needs international service? What roaming bar? Last time I went to Korea, I didn't bring my Samsung mobile phone and Apple mobile phone. If you go, it seems that you can only bring apples or Samsung. Do you have any reforms now? I don't know, because I haven't traveled to Korea before. It's too expensive. Seoul is better than Jeju Island, but Jeju Island has good scenery and good environment, but there are a lot of wifi in Seoul, Jeju Island road is not very congested, and Seoul's words are very crowded. Speaking of calling back, as long as you make an international call forecast, you can make a call anytime and anywhere with your mobile phone. Maybe the phone bill will be a little expensive. Also, just a reminder, don't cross the railing in Korea, whether there is a line blocking it or not.