I have been using Verizon through the MVNO BJ Communications. It has worked great with my Max Transit Cat-18. I wanted to add some redundancy, so I got T-Mobile through B J Communications just recently. Bottom line, Verizon still works like a champ but T-Mobile does not.
Does anyone see a problem with my config? I have Verizon in SIM A and T-Mobile in SIM B and switch between them manually.