This is the 6640th most frequent Korean word.
울리면
"울리면" means "if/when (something) rings" or "if/when (someone) makes (someone) cry," depending on context.
The word '울리면' is used here to denote 'might ring' emphasizing the condition caused by the action of closing.
문을 너무 세게 닫으면 벨이 울리면 안 돼요.
If you close the door too hard, the bell might ring.
In this case, '울리면' indicates 'rings' showing the condition occurring when the phone makes a ringing sound.
전화기가 울리면 받기 전에 화면을 확인하세요.
If the phone rings, check the screen before answering it.
Here, '울리면' implies 'cries' relating to the emotional state of the child upon responding to their condition.