Noun
よびりん
大便の最中に呼び鈴が鳴り、男はお尻も拭かずに玄関へ急いだ。
The doorbell rang while he was in the middle of pooping and he rushed to the door without wiping his butt.
A buzzer that will call you to the door is a doorbell.
The reading is 呼ぶ and 鈴's reading, put together.