I've searched in many places for a tool to handle SMS messages (sending, receiving, ...) using ModemManager - but couldn't find one, so I wrote a quick and dirty Bash script that does so. I have a failover setup for my main internet provider using an LTE modem and found it very useful to have a mobile number available for sending SMS alerts when server errors occur, such as:
- no internet connection — sending status updates about the failover
- sending messages about modem restarts and so on...
Here it is: https://github.com/teon/sms