The Jetpack is NOT SUITABLE for operating Wi-Fi thermostats or other remotely controlled Wi-Fi devices (security systems etc). I have just learned this the hard way.
I have a home in a rural area with no decent internet available. Jetpack is great—but only for getting the internet. I have successfully connected my Wi-Fi thermostat to the Jetpack but when I try to access it from the city, I find that it has lost its connection to the thermostat and the only way to get it back is to drive 115 miles and re-cycle the Jetpack. That means I can't warm up the house remotely in winter before I get there.
VZW's reps, unfortunately, are unaware of this Jetpack shortcoming and so I've been around and around the block with this issue (should have Googled it FIRST). First they thought the Jetpack was defective so they sent a replacement. The problem persisted. I just spent an hour on the phone with VZW's tier 2 tech support only to be told that the Jetpack is not designed to provide an uninterrupted signal.