Yeah, this is Verizon EMAG etc...
Alarm Notification Profiles are one of the easiest extension points in the SDK, and we even have an example of it: ignition-sdk-examples/slack-alarm-notification at master · inductiveautomation/ignition-sdk-examples · GitHub
If you guys want to see what unreliable really is I invite you to take a stab at sending AT commands over serial to your modems and see how long you're happy with it. It was the first approach we tried 10? years ago before we ended up with this stupid Sierra Wireless thing instead.