How to make WhatsApp voice and video calls from desktop

Many WhatsApp users access the instant messaging platform from their PCs in order to keep their phone time limited, especially during working hours. However, there may be times when you need to call someone, and you can do that with your desktop itself.
Desktop calling lets users call their contacts using WhatsApp Desktop for free, even if they’re in another country.Desktop calling uses an internet connection to make calls – just like the smartphone.

It is to be noted that Desktop calling facility is supported on PCs running Windows 10 64-bit version 1903 and newer as well as MacBooks running macOS 11 and newer. Furthermore, desktop calling isn't supported on WhatsApp Web, so you have to download WhatsApp for Windows or WhatsApp for Mac to make a call from your computer.
To make or receive calls on WhatsApp Desktop, you’ll need:

Users must link their phones with the Desktop app before calling. You can link the device with QR code.

If you have chosen to silence calls from unknown callers, they will be silenced on WhatsApp Desktop too. A headset is recommended for the best audio because using a separate external microphone and speaker devices might cause echo.