To make international calls with your cellphone, dial your country's exit code followed by the country code, area code and phone number of the person you're contacting. You can also dial the plus sign in place of your country's exit code. The exit code for the United States is 011.
Most cellphone service providers charge a fee for international calling. Android users can avoid extra fees by downloading certain applications onto their devices. Google Hangouts, Line and Tango are some apps that allow individuals to call and text fellow users for free. Skype also allows individuals to make free video calls.