1. Make Free Calls with Wi-Fi. (Here)
2. Free call Internet Phone (Here)
3. Free Calls to USA & Canada From Gmail (Here)
4. iCall (Here)
5. Send Free SMS Free calls (Here)
6. Free Calls To Australia ( Here)
7. Free Call France (Here)
8. Raketu Free Calls (Here)
9. Globe7 Internet Phone (Here)
10. Jangl free SMS and free Phone call (Here)