Students are expected to treat web-conference class meetings as if they were attending class on campus, which includes behaving professionally, treating others with courtesy and respect, refraining from using profanity or socially offensive language, wearing appropriate clothing, and avoiding inappropriate surroundings.
Students are required to have and use a camera and microphone when attending web-conference class meetings unless otherwise specified by the instructor. Students may not join a class while driving or riding in a car. Students are expected to join from a suitable, quiet location with a device that permits full participation in the class activities.
Many live sessions include activities that cannot adequately be performed on a mobile device.
Source: Harvard University: Student Conduct, Expectations.