1. Enter an international access number. (In Korea, 00700 is cheaper than any others.) 2. Press the country code, area code and telephone number. 3. Finally, press the SEND button. 1. Enter the desired mobile number (without any additional access numbers). 2. Without any additional access number, just press the handset number you want to call. 3. Finally, press the SEND button. 1. Enter the area code. (Area codes are always required when calling a landline number from a mobile phone.) 2. Enter the desired telephone number. 3. Press the SEND button.