My interpretation is that the MVNO plan and number would only serve the purpose of keeping a constantly on data connection to then use your own infrastructure and number. The number from the MVNO would not really be used.

It seems this would solve the hijacking issues but you’d still likely get bombarded with robo calls to the MVNO number.

Does your setup have any mitigation against robo calls for the anveo number?

What do use for dialing? I’m wondering if it would somehow be possible to disable the device phone app to disable getting nuisances from the MVNO number.

I’m very interested in a write up. Thanks for sharing!