Remote ringer

Hello, I’m looking for a product like on the attached photo:

  • I left my phone downstairs, or in a car, etc;
  • someone’s calling me, but I don’t hear the ringer.

So, I need a Wifi relay, or a Wifi smart plug to automatically connect to the Wifi on my phone when in range, and goes on after, let’s say, the 4th ring.
The beeper, or a light bulb, plugged in to the Wifi relay or a smart plug, will tell me that someone’s trying to reach me on my phone which I forgot somewhere in a range of my home Wifi signal.

So, I need:

  • a cell phone;

  • a smart plug or a Wifi relay;

  • an app to do what I need it to do.

    Any idea how to proceed?
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https://ibb.co/BtCKZXz