How do this:
Video calls are a network service, and to make a video call, you need to be in a 3G network.
Do you have friends or family that you don't see in person very often? For a face-to-face chat, why not make a video call to them?
For info on availability and costs, contact your network service provider.
Video calls can only be made between two parties. Video calls cannot be made while another voice or video call is active.