VoIP (also called Voice over IP, IP Telephony, Internet telephony, and has also been branded Digital Phone) is the routing of voice conversations over the Internet or any other IP network. The voice data flows over a general-purpose packet-switched network, instead of traditional dedicated, circuit-switched voice transmission lines.

Voice over IP traffic may be deployed on any IP network, including ones lacking a connection to the rest of the Internet, for instance on a private building-wide LAN.

You can make calls for free using this service, and many providers allow free or low cost set up of VoIP.

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