I've read a lot of questions about using Wi-Fi and mobile data at the same time to make downloads faster.
This is NOT what I am looking for.
I need to connect my smartphone to a local Wi-Fi service network. It does not have internet connection, it has only my door bell server.
At the same time my smartphone will be connected to 4G using all other internet services.
A simple "route" to my server's IP would be enough. It looks to easy to be made in a desktop but I have no idea if it is possible to be done in an Android device.
Regards, Ian Maciel.