International calls via your fixed line
If you are planning to set up a fixed-line while in Korea, it is advised that you make international calls through that phone rather than with a mobile. Many people choose Hanaro to be their primary phone provider because of their super low international call rates. You can make cheap international calls from your Hanafone or Hanaro cell phone for 150 - 702 won ($0.15-0.70 USD) per minute. Between 12:00 a.m. and 6:00 a.m. from Monday to Saturday and all day on Sunday, you can take advantage of reduced calling rates.
Cell phone service providers all have different prices for international calls. If you plan on calling outside of the country a lot, you may want to figure out which provider offers the lowest international call rates to the country you’ll be calling the most.
International calling cards
Basic carriers and telecommunication operators offer international calling cards at different prices. Depending on what country you are calling, rates can vary from as little as $0.02 USD a minute to $0.50 USD a minute. International calling cards are sold at nearly every supermarket, convenience store, transport hub, etc.
Note: Exchange rates, numbers and information were collected in April/May 2007 and are subject to change.