I use a SkyROAM MiFi device for my own Internet connection and connect the hub through that. I have three cameras. One that faces the door (in the video), one that looks out through the window at my truck in the parking lot, and one that is mounted TO my truck’s rear window, to watch the truck bed and tool box.
The one looking through the window cannot be activated by the motion detector, but I CAN quickly record it with my iPhone when the truck’s camera is triggered.
I got a fun reaction from a girl in the parking lot who walked past the truck as she let out a loud sneeze. Her reaction to the “BLESS YOU!” coming from no where was priceless! Unfortunately, I did not save that video.