This is pretty wild, I'm not too sure what to think of it. This is more of a performance piece documenting the ability of technology of that time.

Juan Downey in Radical Software vol. 2 no. 5 “Video and Environment” (1973): 2-10.

"Communication" by Juan Downey. Phone calls and mailed posters inviting hundreds of people to participate in this event. For one night, a communication center is established. The audience is provided with walkie-talkies, closed-circuit,...there is no sound or light."pg.9

Miguel Ortiz-Teed