All, I'm putting together a camera/security system for residential remodeling job sites. The system will be semi-portable, and will move from job to job as remodels get completed. The General Contractor (GC) said we can use the homeowner's broadband connection. I'm learning about the many pitfalls; security, a customer's possible bandwidth cap, etc. And the risk that anything that goes wrong with the customer's network will be my fault, until I'm proven innocent. Maybe even printer problems (due to empty ink cartridge). So I'm considering using a cellular modem. I'm hearing the cell network is more dependable than residential internet connections. Plus I'll be able to create one system architecture than can be used on any homeowner's job. I won't have to deal with cable modems, DSL, Dish, etc. And all the different routers of different homeowners. M2M cellular modems look pretty capable. One knowledgeable person recommended Cradlepoint COR IBR650LPE-VZ or COR IBR600LPE-VZ (with Wifi). They're robust. But expensive, ~$600 The other end of the spectrum would be a wireless hotspot, ~$200. (neither price includes data) Data Traffic details: 1) SMS & email, with snapshots, when an event occurs. (Face Detect, Laser tripwire, Optex motion sensor, etc) 2) Remote access to view job site when an event occurs. 3) No remote video storage (ftp, dropbox). NVR will record 24/7. So I data plan costs should be low. What cellular modem features do I need? What modem would be best? Thanks!