I know that there are various ways of making my phone ring using the internet, but I am not aware of how to do it over my local network on Wifi. I would like to write it myself as an exercise to learn about android development.
My original idea was to create a service that listens on a certain port and if it receives signed request from a local ip, it rings.
However after doing some research on https://developer.android.com/guide/components/foreground-services and how to create a PERMANENT background service on android , it seems that the android OS shuts down automatically background services on its own to preserve batteries.
Is there some way to wake up the service app if there is some request coming from a computer connected on the local network?
