So, I have BaseHAT with Telit LE910CI and I have successfully connected to the internet with ECM - Thank you, @ensar for bearing with my misunderstandings during this process.
However, I really need a remote client to connect with my Pi, and for that purpose it looks like I need either PPP or QMI (see your tutorial https://docs.sixfab.com/page/using-sixfab-raspberry-pi-shield-hat-as-a-wi-fi-hotspot) - in order to get an IP address. Can I simply install one of these protocols (using your installer scripts) over the ECM without “uninstalling” anything from the modem?
I would like to use QMI as it is said to be faster. Is it available for the Telit modem? Or is PPP recommended as easier to work with?
Thanks for your help, @j.b.pilkington