Voice over internet protocol (VoIP) is basically a software or hardware that lets you make calls over the internet. Because the calls are spending most of their time floating around as a digital signal handled by your VoIP for businesses, the cost to manage those calls is incredibly low.

In the past, many people used a computer and microphone to record a human voice or other sounds. VoIP involves sampling the sound that is heard by the computer at a very high rate (greater than 8,000 times per second) and storing those “samples” in memory, or a file, on the computer. Each sample of sound is just a very tiny bit of the person’s voice or other sound recorded by the computer. The computer can take all of those samples and play them, so that the listener can hear what was recorded.

VoIP is based on the same idea, but the difference is that the audio samples are not stored locally. Instead, they are sent over the IP network to another computer and played there.