IPVMU Certified | 09/17/13 01:27pm
For the second option: "A way to have an IP camera connected to a switch or small appliance that can communicate over 4G", you could try something like this:
Cradlepoint CBR400 + A supported 4G USB Modem + Your 110V powered (cube?) IP camera
See our tutorial on Cellular / 4G for IP cameras.
Most practical way to do this is to get a camera of your choosing, and couple it to a ruggedized M2M router. Cradlepoint makes some, Sierra Wireless makes some, and Novatel has some really nice units. None of these will run off 110V, but most/all will run on 12VDC, so you should be able to find a camera + router combo than can run off a standard "Wall wart" style power supply.
Keep in many that many 4G services will have a 5GB monthly bandwidth cap, which can be eaten up in 48 hours or less, and that's not even at full-res. Also be aware that Verizon's 4G network doesn't assign public routable IP's, you're behind a giant Verizon NAT, unless you get setup as a business partner. So, the camera could push data OUT (like an FTP image upload), but you couln't connect IN to it, unless you also setup a VPN and choose a router with auto VPN nail-up.
Brickcom had a good solution over 3G but didnt follow. Onboard storage with SIM card. Great solution, small market, not the playing field for a large Tiawanese manfacure.
Check out our solution - Work Site Webcams - and let me know if you want more info.