VoIP is a communications technology that changes the meaning of a "telephone call". VoIP stands for Voice over Internet Protocol and it means "voice transmitted over a computer network."
Internet Protocol (IP) networking is supported by all sorts of networks: corporate, private, public, cable, and wireless networks. It goes far beyond the "Internet" part of the acronym. VoIP runs over any type of network. Currently, in the corporate sector, the private dedicated network option is the preferred type. For the telecommuter or home user, the hands-down favorite is broadband. VoIP networks can be accessed by a desktop telephone, a wireless IP or smart phone, a laptop, home PC, and any device with an Internet connection.