[FREE] Can anyone make me a small voice communication program?

Hello, can anyone create me a program, for FREE, that allows me to have a converstation with my mic. with my friends. I will give the program to my friends then we can talk. so basicly this would be a server/client program...

Well i would apreciate it if someone would make this for me.

Why do it for FREE?
Well maybe you want a challenge?
i dont know...

If you are just looking for an app that can do this, use Skype.

I already have an app like skype i just need a customized one.