Vandyman---you ever get your doorbell working?
SecuritySeeker---I finally got a reply from Gwell support although it makes little to no sense out of the poe question??? I had asked about 24v/48v poe and 802.3 af/at connection and voltage limitations. I don't know if the translation was just too much or what. It is still hooked up and functioning great with the included power supply over approximately 100 ft (30 meters) of pretty cheap cat 5e. Currently, the included power adapter/"injector" is connected using the included accessory cable (ethernet/power injector adapter) at the switch end of the 100 ft cable with the other end connected directly to the ethernet port on the back of the doorbell. As the camera is currently located almost 1000 miles away from me, I haven't been able to experiment with hooking it up again to any of my injectors, but will travel that way again in a few weeks and may try since I am looking at a poe switch to use.
Their answer:
"Good day! This is greeting from Gwell service team.
Thanks for your feedback.
Sorry as I know we do not support to connect to POE."