Call anyone wherever they are in the world and video or voice chat, with the free Skype download.
With Skype you can make phone calls via the internet and see each other on screen. It's so much more than just a simple VOiP phone. The screensharing function is especially useful, as it lets you see the desktop of the person you're talking to.
The integrated video conferencing system enables you to talk to up to nine other people at the same time. The only drawback is that you can only test the group calls for seven days for free. Afterwards you'll only be able to make individual calls.
Send unlimited video messages to your contacts for free and receive video messages even when you're not online.
Verdict: Skype offers good audio quality and reliable connections. The software also works behind firewalls - without additional configuring.