Can the graduate tutor WeChat call at home?

Something happened to the graduate students. Please call the tutor. The best way for graduate students to ask for leave or seek help from their tutors is to call directly, so that they can communicate and solve problems more quickly. Although WeChat is convenient, it is difficult to accurately convey the text expression and tone, and it is easy to cause misunderstanding or unnecessary trouble. In addition, telephone or face-to-face interview can directly understand the situation and urgency of the problem and better provide help and support for graduate students.