VoIP (Voice over Internet Protocol) is a digital telephone system that lets users make and receive phone calls over the Internet as opposed to over the traditional wired Public Switched Telephone Network (PSTN.)
VoIP has many names: virtual telephony, online phone system, cloud phone service, IP telephony, virtual calling tool….the list goes on.
All these terms mean the same thing: instead of using a traditional landline phone for voice calls, VoIP manages phone communication over the Internet.
The "IP" in VoIP is another key part of the process.
IP stands for "Internet Protocol" — and it's responsible for facilitating local and long-distance over digital phone lines instead of physical landlines.
