Voice Over Internet Protocol, or VoIP, is a technology that allows people to make voice calls using the internet instead of traditional telephone lines. By converting sound into digital data, VoIP enables users to communicate over the internet, often resulting in lower costs and greater flexibility. This technology can be used on various devices, including computers, smartphones, and dedicated VoIP phones. VoIP works by breaking down audio signals into packets of data, which are then transmitted over the internet. Once the packets reach their destination, they are reassembled into sound. This method not only supports voice calls but also allows for video calls and messaging, making it a versatile communication tool.