I'm working on a project to move CCTV images to one central location. The phone lines were in place but this system was more expensive than using powerline devices so I went with the powerline which actually worked as it sounds like you need a pretty clean system to get from point a to point b to get. I bought a Tupavco system and connected it with phone wires. I have a clean image on multiple cameras (three phone cord splices between two Tupavco units). Happy with the results as I preferred wired WiFi and the cost of burying cables made this impossible. By the way, I used a SPS device to walk about 100 feet from Tupavco and the camera distance.
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