For the most part, the nature of VoIP involves transmitting voice communications over the internet rather than through traditional telephone lines.
An advanced way of looking at this is VoIP converts analog voice signals into digital data packets, which are then transmitted over the internet or other packet-switched networks. And the best part about VoIP is its cost effectiveness, flexibility and integration capabilities.
However, the very nature of transmitting voice communications over the internet opens up several vulnerabilities that can be exploited by cybercriminals.
With this in mind, more questions roll in — how do you secure your VoIP calls? Best practices? Mitigation tactics? All of this and more will be answered in this guide.
But first —
How Does VoIP Work?
Here’s a quick run down of how the VoIP system works:
Voice signal conversion : When you speak into a VoIP-enabled device (like a smartphone, computer, or VoIP phone), it converts your voice into digital data. This conversion is done by your device’s microphone and an analog-to-digital converter (ADC), transforming the sound waves of your voice into digital packets of data.
Data compression : Next, it compresses your digital voice data using a codec (coder-decoder).
