Voice over Internet Protocol (VoIP) is a phone system that’s been around for over two decades. Though that may seem surprising, it actually makes sense because that’s about how long the internet has been mainstream, and VoIP needs an internet connection to function.

VoIP has come a long way since the mid-90s when the technology first enabled phone calls over the internet. Thoughtful developments in telephony hardware and software have driven its growth, and enhanced internet functionality has been a key component, too.