Hilariously, the PPP (Point-to-Point Protocol) is still used in modern IoT modules. It is actually the only way to run your own TCP/IP stack (and maintain contr

Hilariously, the PPP (Point-to-Point Protocol) is still used in modern IoT modules. It is actually the only way to run your own TCP/IP stack (and maintain control over TLS), as not all modules support QMI or MBIM.