Components for streaming video from one device to another

I want to use Unity to stream video from the physical camera ( iPhone, Android, etc) from one device and have it viewed on a second device (also iPhone, Android) via wifi or bluetooth.

My searches so far (camera, streaming, etc) are finding all the wrong topics. What components in Unity can consume video from the physical camera say on an iPhone and stream it live to another iPhone?

None can. Unity is a game engine, not a video network broadcaster. maybe plugins from the asset store can, or you write your own.