First, have you given thought to Yahoo messenger? or Skype? or Lingo? or WhatsApp?
There are many ways to make this cheaper for you so you don't have massive monthly phone bills. If you're like me and you are limited for time and you want to call on your mobile (cellphone) while you're on the bus or subway, I STRONGLY recommend you get a phone card.
A phone card will cost you about 20,000 Won and you'll get close to 2000 minutes... a pretty good deal. You can get phone cards are most shops. Ask around, find a favorite, SAVE your money.









