LONG Building Technologies | 01/11/16 12:07pm
B&B Electronics is a really good company for industrial communication equipment. I haven't used their cellular products, but I have specified other products from them many times and trust them to make reliable equipment and to provide good support.
IPVMU Certified | 01/11/16 12:31pm
Sierra Wireless is one of the BIG names in this space. Law Enforcement has been in love with the GX440 for about a decade now. Build like a tank. The configuration page is a little rough to make your way though, but not terrible.
Cradle point is a consumer level product that is moving into a harder space. They have some more industrial stuff now.. the IR650 I think is the number. I've used them. I like them.
Moxa makes rugged industrial hardware.
Redlion Sixnet, Digi wan connect and Microhard are also good choices.