How to call from arduino?

Question

Arduino

Hello people, my neighbor's dacha recently burned down, I thought about it and realized that I need to make sure just in case.
For a long time I thought about how best to make a fire alarm system,
and I realized that the best option is to do it on arduino.

The idea is this: there is a sensor on the arduino, and when it senses a fire, the arduino calls me on the phone,
how can this be implemented?
i have:
arduino uno, and wires and jumper board. What do you need to buy and what design to make?

Answer 1

Google GSM modules for Arduino. SIM900 or something like that the most popular is called.
There are commands for sending sms and calls