How to make MikroTik beep sound if the internet stop suddenly?

RouterOS Scripting
1

Hi friends
How is it going?
simple question/ How can I make mikrotik device makes a beep if the internet service stopped suddenly? (the sound is similar= beep-beep-beep -------the sound will go on until the internet comes back)
1- what is the system script ?
2- what is the netwatch rule?
3- Do I need a system scheduler ?
Anyone help me please? with thanks

2

Yes, you need netwatch rule. The netwatch can ping some address you know will always be working, like your ISP homepage.
There is a documentation manual you should read: https://wiki.mikrotik.com/wiki/Manual:Tools/Netwatch

3

THANKS A LOT