Phone calls can be made using coins -- 2 Kc is the minimum for a local call -- or telephone cards, which can be purchased at most post offices and newspaper stands. Phone cards come with different levels of phone-time credit and vary in cost. If you're only planning on making a couple of local calls you may just decide to use the coin-operated pay phones.
Making a call on a card phone is simple: Pick up the receiver, insert the card and dial. The units of phone time count down after you are connected to your party.