Voice over Internet Protocol (VoIP) is a technology that enables voice calls to be made using a broadband Internet connection instead of traditional analog phone lines

. It works by converting your voice into digital data packets that are transmitted over IP networks like the Internet, allowing calls to be made from computers, VoIP phones, or other internet-connected devices

. VoIP supports not only voice calls but also multimedia communications such as video calls, voicemail, instant messaging, and more, often integrating these into unified communication systems for businesses

. It can be used with regular phones through adapters that convert analog signals to digital data

. VoIP offers benefits including cost savings, advanced features, and flexibility, making it popular for both personal and business communication

. In summary, VoIP is essentially phone service delivered over the internet, replacing traditional telephone infrastructure with digital communication technology