Telephone conferencing can be used to solve communication problems in correspondence education. Technical problems have largely been resolved, and programs like the Educational Telephone Network (ETN) at the University of Wisconsin Extension have effectively used telephones to deliver instruction to remote classrooms. The success of such instruction depends on visual and printed supports and high technical quality, coupled with adequate administrative organization. The Open University of Great Britain has also developed telephone conferencing technology which facilitates elaborate communication networks among correspondence students and instructors. (EMH)