Soon after Apple allowed VOIP calls on its AT&T network after succumbing to FCC’s orders, Fring, a VOIP client launched its 3G-friendly VoIP app on iPhone. With fring on 3G, users get unrestricted, mobile communication. Now iPhone fring users can call, video call, chat and more for FREE over 3G and Wi-Fi. Fring offers to connect to many IM clients like Gtalk, Yahoo, MSN and more.
You can download the update on your iPhone by just opening the app and updating or can download the file from iTunes Store.
Check out the video:
[youtube]http://www.youtube.com/watch?v=LU3BOzKhFFQ[/youtube]