Cellular Modules, also known as modems, can be used with Toradex SoMs to achieve machine to machine connectivity.
ModemManager can be used to configure and control cellular modems. Learn how to use it on Modem Support.
ModemManager is available on TorizonCore out-of-the-box. Learn how to use it on Modem Support.
You have to integrate ModemManager to your custom Yocto distribution. At the moment, no specific instructions are provided.
After you have it integrated, learn how to use it on Modem Support.