How can I make a 3G-324M video call?

I tried to place a 3G-324M video call to my Incredible, but the other phone says that mine doesn't support it. On the web I found someone mentioned that Incredibles do not support video calls in 3G at all. Others mention that this is possible with Skype. **The question is** - can I make my phone use 3G video calls without using a mobile Internet (as I think Skype is using Internet rather than native 3G video calls, thus I am paying for mobile Internet with Skype calls and not per rate specified per minute for 3G itself). Or is Skype the only available option?