Video conferencing may be one-way or two-way. When one-way, participants can see and hear the people in one site(usually where the instructor is located), and everyone can interact by telephone. When video-conferencing is two-way, participants can both see and hear those in other sites. In general it is easier to control groups when they can be seen. Also, students tend to be more motivated by video than audio alone. Managing video technology is more difficult, and teachers need more specialist technical assistance than with audio-conferencing.

For instructors the strategies for teaching by videoconference are very similar to audio-conferencing—whichever method they expect to use, they will find the literature related to both forms of teleconferencing to be equally helpful.

• T. Cyrs and F. Smith, Planning and Conducting the Videoconference

• The Human Factors of MBone Videoconferences:
  Recommendations for Improving Sessions and Software
  
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• Video technologies used at the Open University of Israel:

  >>  Interactive Distance-Education Via Satellite
  >>  TV-Assisted Teaching Telecourses