I use this service all the time and it is great. All you need is a Gmail account and an Internet connection. You can setup a free Gmail account here, Gmail account, click on Create an Account. After you create an account you will see a Call phone link in the lower left of the mailbox. Click on that and a Dial Pad will appear on the lower right side of the mailbox. Just type in the number and make the call. Below are a couple of pictures of what you will see.