Telephone is a recently launched Facebook application that lets you make free VoIP calls directly from Facebook. There are several other applications that enable you to do this on Facebook and other networks like MySpace and Bebo, but Telephone, launched by BabyTel, is adding a few extra features to hopefully make it worth your while.
After adding the Telephone app to your Facebook account, you can launch the service and make phone calls directly to your Facebook friends. In order to make a VoIP call, both you and your friend will need to also have the application as well as the downloadable software. But the good thing about having the software installed on your computer is that the Telephone app can then be used as a standalone desktop application for sending and receiving calls even when you don’t have Facebook open in a web browser.