If you call your child once, twice, three times and then shout, and he gets up at once, be sure he will never get up again unless you shout: it becomes a habit

If you call your child once, twice, three times
and then you shout, and he gets up at once
Be sure that from now on he will only get up when you shout
It becomes a matter of habit

Do not let him get used to shouting
Get up and take from him whatever he is busy with
Hold him and speak to him eye to eye: why are you not answering me

Agree with him that anything he becomes absorbed in, and because of which he does not answer his mother, will be taken away from him at once
If it is the television, it will be switched off
If it is a phone, it will be taken
If it is a toy, it will be removed

Do this calmly, without temper and without shouting

Do not let him get used to shoutiiiiiing
because you will spend the rest of your life shouting

Either he will pick up the habit of shouting from you, and then you will complain about his shouting and his temper, which wear you down and which you cannot stop

Or he will become dull and indifferent, to annoy you further so that you shout more, while inside he is pleased with his achievement in making you shout..