I'm looking into research about an internet business through VoIP. What would be needed, as far as machinery for connectivity?

I'm looking into research about an internet business through VoIP. What would be needed, as far as machinery for connectivity?

I don't know about voip but go to co.cc and get a free domain name then go to wordpress.org and download the file then go to 000webhost.com and signup and look up on YouTube how to make a website with wordpress and once you get it setup look up ecommerce on the plugins page and activate wichever one suitss you.
Coming from a successful twelve year old lol