Can maintenance workers be notified on their mobile devices of urgent maintenance tickets?

Can maintenance workers be notified on their mobile devices of urgent maintenance tickets?
Hi
I am working on SMS project right now. I ran to some issues and it is not an easy project. These are my research so far
1) You need an account with SMS provider such as https://www.twilio.com/
2) Then you can utilize Power Automate (like when document marked urgent ) to send SMS
powerautomate.microsoft.com/.../
3) the other method is to create trigger through developments.
The other method is that you design an app (Android / iOS) that can connect to BC through API then pull the date and show notification.