Yahoo! Messenger ( All country’s)
Download and install Yahoo messenger in your computer. You need yahoo account too to make calls. Click on Y! Voice.Dial toll-free number 18003733411 and call it.
Follow the voice instructions and also choose free call option and finally end by saying ‘free call’ from your mic.
Now, you will hear an advertisement after which, it will say “Please Dial Your Number”.
Just Dial Your phone Number and start your free call.
iCall (Anywhere in US and Canada)
Best application to make free phone calls from your computer to mobile. It available for Windows and Mac OS. It also support free conference calls up of to 10 people.
Site2SMS (Make Free calls to any mobile number in India)
Web portal in India to make free voice sms and calls. You can make 15 calls in 2 mins. for each day.
Voip Buster ( Not India) daily limit : 60 minutes
But provide free call service for Hong kong, Hungary, Iceland, Ireland, Italy,Japan, Malaysia, Netherlands, France, Denmark, Czech republic, Canadamobile, Australia, Austria, New zealand, Norway, Portugal, Singapore, Spain, Switzerland, Taiwan and United states mobile.
Application for Windows and Mac. First call is free.