VOIP means Voice Over Internet Protocol. This pretty much means that you can have sound applications over the Internet and make free calls to people all around the world.
One of the largest and best known service is Skype. Skype first was released in August 2003 and since then it has changed the telecommunication industry. Currently, Skype has around 300 million users. This is an amazing figure. The main creators of Skype was Niklas Zennstrom and Janus Friis. Today, Skype belongs to Ebay because it was sold by the creators in 2005. One major issue with Skype for Linux is that Skype is not being upgraded. Linux does not seem like a very high priority for the Skype team and we are long overdue for an upgrade of Skype for Linux. Neverthless, it is still an amazing piece of software that enables you to chat for free with your loved ones around the world. To download this great piece of software go to Skype.com