What are the advantages and disadvantages of telephone communication?

The most important advantage of telephone communication is that it is convenient to communicate, not limited by time and space, and people who are far apart can contact at any time and anywhere, and the cost is relatively low. And sometimes you don't have to meet each other by telephone, you can say something you want to avoid embarrassment.

The disadvantages of telephone communication are: first, there is no image, and body language is rich, which can supplement the meaning in the discourse, and telephone communication can not achieve the effect. Second, telephone communication sometimes has poor information. For example, telephone fraud is implemented by using bad information to a certain extent.