That's what we can read over the Fring Blog :

we’re very excited to announce the healthy arrival of….the world’s first mobile video calls over internet! (with fring and Skype video calls )

Now for the first time ever fringsters can make and receive internet video calls from mobile devices (for free!), picking up your fring and Skype video calls from the road, and seeing the person you’re talking to from your mobile phone.

fring video is currently supported on Nokia touch (such as X6, N97 mini,N97, 5800), N95, N95 8G and N82 devices.