How does VoIP work?

VoIP, which stands for Voice over Internet Protocol, works by turning your voice into digital data that can be transmitted over the internet. Here’s a simple breakdown of how it works:

1. Digitising Your Voice: When you speak into a VoIP-enabled device (like a VoIP phone or a computer with VoIP software), your voice is converted from analog sound waves into digital data. This process is called digitisation.
2. Packetisation: The digitized voice data is then divided into small packets of data. Each packet contains a piece of the voice data along with information like where it’s from, where it’s going, and in what order it should be reassembled.
3. Transmission: These packets are sent over the internet through your broadband connection. They travel through routers and switches, which direct them to their destination.
4. Reassembly: Once the packets reach their destination (the person you’re calling), they are reassembled into a continuous stream of voice data.
5. Conversion Back to Analog: Finally, the digital voice data is converted back into analog sound waves, which the person on the other end can hear.

Key benefits of VoIP include cost savings, flexibility (such as using the same number anywhere with internet access), and often additional features like video conferencing and voicemail-to-email.