There will be an instrument which allows video communication.

Hugo Gernsback : Author
"Stepping to the Telephot on the side of the wall, he pressed a group of buttons and in a few minutes the faceplate of the Telephot became luminous, revealing the face of a clean-shaven man about thirty, a pleasant but serious face. As soon as he recognized the face of Ralph in his own Telephot, he smiled and said, "Hello, Ralph." "Hello, Edward. I wanted to ask you if you could come over to the laboratory tomorrow morning. I have something unusually interesting to show you. Look!" He stepped to one side of his instrument so that his friend could see the apparatus on the table about ten feet from the Telephot faceplate."

Huge Gernsback. Ralph 124C 41+. New York: Experimenter Publishing. 1911.