There are many examples of VoIP programs out there. One very well-known one is Skype. A few of Skype's features are traditional voice calls, instant messaging, video chatting, and voice only conference calls. Having used Skype myself, I would have to say that setting it up and using it is very simple. You will have to find out if anyone you know is already on Skype in order to get their username to be able call them. If you are interested in downloading Skype and trying it, here is the website: http://skype.software.en.softonic.com/download?gclid=CNfGgdTf26UCFWp75QodWHhSzg. It is completely free to sign-up and you can begin making calls right away! Skype does have a few features that cost money, but I have found in my use, that the basic features suit my personal needs.
Here is a list of a few more VoIP programs and websites you can visit to find out more information:
- Google Talk - http://www.google.com/talk/#utm_campaign=en&utm_source=en-ha-na-us-bk&utm_medium=ha&utm_term=google%20talk
- AOL Instant Messenger - http://www.aim.com/?sem=1&ncid=AIMAIM00170000000004&s_kwcid=TC|10780|AOL%20instant%20messenger||S|b|5623652114
- Mumble - http://mumble.sourceforge.net/ (More suitable for gaming needs)
- Octro Talk - http://www.octro.com/
- Ventrilo - http://www.ventrilo.com/