Have you tried Gmail phone? It's free to call the US and Canada from anywhere in the world. Just sign up for a gmail account. When you visit gmail.com. You'll see a green phone icon on the left hand side. Click on it and a dial pad will pop up. First time users will need to download the free google voice plugin. Takes only 30 secs. After that you'll see the dial pad and dial away. Area code and phone number of any phone cellular or land line. You can use your laptop speaker and built in mic or you'll have to plug in a mic if not built in.