I'm wanting to acquire some IP cameras for home security that support remote video access by android phone or pc. I've researched a little bit and have discovered that there are basically three types of IP cams - the older traditional type that require port forwarding and DDNS service, the indirect P2P that uses a 3rd party host server, and the pure P2P that apparently doesn't require the server. I'm on a monthly metered internet connection and can't tolerate constant video streaming to a host server. I need some kind of on-demand setup that can simply activate the home listening TCP connection, sample the video, and then return the connection to the listen state. I'm thinking that a the pure P2P setup might do this. But, I'm not sure about the traditional IP cam setup. I believe Unifore sells IP cameras that act as their own server/client. However, Unifore deals in commercial applications. Does anyone know of an IP camera or cameras on the market that function within the on-demand constraints that I've mentioned ?