Why don't colleagues answer the phone when they ask for leave?

Special circumstances made him unable to respond in time, such as no electricity, no signal, and no time to take care of emergencies. In this case, the general parties will take the initiative to contact you afterwards. It is an abnormal phenomenon not to answer the phone or reply to messages. There's something wrong with this. You should face up to the problem, then find a way to solve it, talk openly and seek ways to solve it, so as to make the future working relationship smoother and more efficient.