International calling refers to the process of making phone calls from one country to another. This can be done using traditional landlines, mobile phones, or internet-based services. Each country has its own dialing codes, which must be used to connect the call properly. To make an international call, you typically start by dialing the exit code of your country, followed by the country code of the destination country, and then the local phone number. Various services, such as VoIP and mobile apps, can also facilitate international calls, often at lower rates than traditional phone services.