To make or receive a voice or video call on your PC Desktop or Laptop, you will need to use WhatsApp desktop. More so, the following will be needed:
1) The latest version of the WhatsApp desktop app (available for Windows PC and Mac)
2) An audio and microphone output device
3) A camera for video calls
4) An active internet connection on your phone and computer. You phone needs to be online to establish the call, but the call won't go through your phone.
5) Grant permission to WhatsApp desktop to access your computer's microphone and camera.
It's worth noting that WhatsApp Desktop calling is only supported on MacOS 10.13 and newer, and Windows 10 64-bit version 1903 and newer.