Skype is the most well-known VoIP software, there are also other programs used on the internet for free calls to other PC users that the program is installed. Another free VoIP program is, for example, Gizmo5.
UPDATE: Gizmo5 in november 2009 Google acquired. Since then, new users can log on and the service is currently completely offline. The technology of Gizmo5 is processed in the telephony service from Google itself, which has been processed in Gmail and Google Talk.
Gizmo5 is a free VoIP program similar to Skype. The software offers the possibility of using the computer to make free phone calls to other users of Gizmo5. It is also possible to at a low amount to ordinary phone numbers to call. When you have a webcam offers, it is possible to with Gizmo5 to make video calls. The advantage of Gizmo5 compared to Skype is that it offers the possibility to chat via MSN, Google Talk, Yahoo!, AIM and Jabber network.
Gizmo5 has the following characteristics:
You can free download Gizmo5 and safe install the latest trial or new full version for Windows 10 (x32, 64 bit) from the official site.