the future of “over the top” voice and video

OTT means IP content sent over the “public IP internet” not over a cable carrier’s paid network or over the old telephone network. The old telephone network called TDM (POTS or PSTN) is switched on old TDM switches.   The chart below is OTT Voice by app by tablet versus “mobile”

Video that consumers “stream” directly over the internet.  OTT video does NOT come from a traditional “last mile” TV video source like a cable company. Streaming HBO HBO Go is OTT it is different from regular HBO There  multiple definitions and examples of OTT video/

How to generate revenue from OTT streaming video? Advertising may be the best?