How to call via 3G

As mentioned previously I am still unable to find a google android Daimler. I do have a talkaton on my IPod. On my way back home I realized that my cell phone could act as a wireless router and then I can access Internet using my iPod and can talk to people that way. The first call I made to mom was great. I could hear her and she could hear me too. Recommended of you need to call through an iPod because it has talkatone available. Later on I called several people all over the world using my phone as a modem