That's called bunk, which is a ritual word. It is mainly about praising the Lord and reminding the people that the prayer time has come and they should pray in time. This is equivalent to a call, and before the Muslims pray the main prayer, they have to recite a corresponding verse called Gamei to indicate that they have heard the call and start praying. This is equivalent to answering, and one call and one answer is completed before the main prayer. The ceremony