Skype

If you have not yet heard of Skype yet, I am concerned that you really need some IT support. To quote the skype site “Make calls from your computer — free to other people on Skype and cheap to phones and mobiles around the world.”

Skype is really easy to use and easy to download, and while it is not the only app out there that will let you talk on the net, it is pretty much the standard at this point.