HERE IS AN UPDATED VIDEO SERIES THAT COVERS THIS TUTORIAL
The following tutorial is a result of endless research on how to setup a LAN with two or three IP Phones that can call each other. I compiled this tutorial together for my CCNA 1 students. The actual setup and documentation itself was used for the 2015 IS Open Day room 223 display, modelling a small business office setup. The last part involved a challenge activity for them to create trunk links to ensure calls can be made over the WAN
I used the Packet Tracer instructor version however any version will still support the following documentation.
The following diagram shows that there are four (4) Cisco IP Phones connected; two phones to the Madang network and two phones to the Lae network.
The current configurations for this setup are shown below;