International dialing refers to the process of making phone calls between different countries. To connect a call, you typically need to dial an international access code, followed by the country code of the destination, and then the local phone number. Each country has its own unique country code, which helps route the call correctly. For example, if you are calling the United States from the United Kingdom, you would dial 00 (the international access code), followed by 1 (the country code for the U.S.), and then the local number. Understanding these codes is essential for successful international communication.