You can use Visible in your MOFI. SIM4 is a Sierra MC7455, SIM7 is a Quectel EC25AF, SIM8 is a Sierra MC7411. Those will tell you which commands you need if any.
The modem must be in MBIM mode for Visible, in my experience. The MOFI should be able to do TTL modification for both IPV4 and IPV6.
If ...
