I’m wanting to use one of the following LTE modems
Sierra Wireless MC7455
Telit LM940
This is based on the T-Mobile IoT certified hardware list which supposedly works with their M2M plans. The M2M plan does not work with the mikrotik LTE modules.
I’ve looked for these modules in the forums, but didn’t see anything concrete on their functionality in routeros.
The MC7455 is not mentioned but there are other models (7430, 73xx, 7710 …), which suggest there is possibility that 7455 will work as well, either as LTE interface or at least as PPP
Similarly LM940 is not mentioned but LE910 is.
Despite the fact those particular models are not mentioned, it does not mean they won’t work. It most likely mean nobody from staff got them in hand to test and report it.
I never tried with the M2M plans from T-Mobile. I only did a prepaid plan for proof of concept. It showed me that I would have to mount the wAP R OUTSIDE to get a signal with T-Mobile. Keeping that in my back pocket for the next time one client I know of on AutoPay screws up his verizon account again.