There has been lots of rumors and talking about making free calls from your computer using Voip and other tool..Here you can get lots of options for Voip calls to make free and cheap calls worldwide

now there is a new news regarding make calls for free from your computer with out any charge and you just need to have is a high speed internet .
NOTE:-More the Speed more clarity the sound..
and also you don’t need any software to make calls that means you make calls from a browser itself.
which is a Java applet which is designed to make calls from browser to your destination. but since it offers free calls you need to bear a 30 secs of advertisement and then you can make calls from this Evaphone Here is a snap shot how it will look like

Evaphone VoIP service provides 30 seconds free calls to any destination including India and your call will get disconnected and you can repeat this calls as long as you want because its all free ..