C2901 Stay a Little Longer

Prof. Hsu frowned and cut off the phone.

He didn't care who the phone number belonged to. He didn't want to answer it right now. This was also his personality. He wouldn't pick up any unfamiliar numbers unless he called a few more times.

As for work matters, everyone knew who he was. So, it was usually his colleagues or superiors who contacted him when there was a problem