It's still video-- unless you want to seriously compromise on quality or frame rate it's an outdoor camera will use decent amount of bandwidth. (I agree an indoor security camera with no view of a window can be awfully low bitrate).
Looks like my cameras, all outdoor, average about 7mbit/sec each-- most of my cameras are 2 or 4mpixel ones though the number is inflated by a couple 12mpixel wide angle cameras. I'm sure I could tune the bitrate a bit more if I tried, but already I turned them down until just before there was a noticeable reduction in face intelligibility at the end of their range.
Looks like my cameras, all outdoor, average about 7mbit/sec each-- most of my cameras are 2 or 4mpixel ones though the number is inflated by a couple 12mpixel wide angle cameras. I'm sure I could tune the bitrate a bit more if I tried, but already I turned them down until just before there was a noticeable reduction in face intelligibility at the end of their range.