VoIP stands for Voice over Internet Protocol. It is also referred to as IP Telephony, Internet Telephony and Internet Calling. It is an alternative way of making phone calls that can be very cheap or completely free. The ‘phone’ part is not always present anymore, as you can communicate without a telephone set. VoIP has been named the most successful technology of the last decade. VoIP has a lot of advantages over the traditional phone system.

How VOIP Works at a glance

With VoIP, analog voice calls are converted into packets of data. The packets travel like any other type of data, such as e-mail, over the public Internet and/or any private Internet Protocol (IP) network.
Using a VoIP service, you can call landline or cell phones. You can also call computer-to-computer, with both parties speaking into a computer microphone and listening through computer speakers or headsets.
When evaluating, it's worth noting that you can make or receive calls using landline telephones. All you need is an analog telephone adapter connected to your network. Also, to ensure the best voice quality and security, consider using your VoIP or other communications system on a private IP network.