Skype is free VoIP software with instant messaging, file transfer and video calling.

Skype is an all-rounder, whether making calls between Skype customers via the Internet or calling for a fee, known as SkypeOut, to landlines and mobile phones, everything is possible.

The free basic functions for simply chatting, transferring files or video telephony via webcam are sufficient for most cases.
There is also a screen sharing function with which you can see the other person's desktop.

If you want more, you can also book chargeable functions in order, for example, to receive calls from the conventional telephone network.
In the current Windows version even conference calls with up to 25 participants are possible.

Skype works fine behind most firewalls without any additional configuration.

Note:
The setup file loads the required files from the Internet during installation.

Skype 4.2 for Windows
Version	License	Author	System	Purchase price	filesize
4.2	Freeware	skype.com	Microsoft Windows, Mac OSX, Linux, pocket pc, Android, SymbianOS, PSP, iPhone OS	_	664 KB
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