My background includes data over cellular in a custom tracking system. 5GB a day you say? You won't be there for long as you are likely increasing the cost of operations by some 100 times or more.
What you have now looks like what most would implement for both cost and security.
So with that aside, what is broken and needs fixing?
Hello, I am working on a scenario in which a service provider maintains healthcare devices at many different hospitals. Each of these will create large files (up to 5GB) a few times per day that need to be sent to the provider's data center. Currently, healthcare devices are connected to an IPSec router that is connected to a data center through a VPN.
I am looking to come up with an alternative that makes it possible to use these remote services independently of the hospital's network, and therefore I considered making use of LTE routers with SIM cards instead to provide mobile connectivity.
Would this be a suitable approach in your opinion? I'd be happy to hear your thoughts!