VOIP: Voice over IP.
This simulation has been done in Packet Tracer 6.2. I have consulted the following website while creating this video. I hope it is simple enough.
http://cs-study.blogspot.com/2012/12/voice-over-ip-voip-on-packet-tracer.html
Also check out the link for more guidance
https://kit.co/kingluffy/computer-networks
