We will describe the multimedia teletutoring prototype jointly developed by EPFL and Eurecom in the context of BETEL, using the state of the art technology available in 1993. With the aide of high quality videoconferencing and shared workspace tools, the actual experiment was successfully carried out at the end of the year over one of the first 34 Mbps Trans-European ATM networks interconnecting sites in France and Switzerland. This network was called the Broadband Exchange over Trans-European Links (BETEL). The aim of this paper is to describe the BETEL teletutoring platform and scenarios, together with limitations and future enhancements of this prototype. Focus is placed on the interactive audio and video communications part of the application.
with permission of AACE (http://www.aace.org).
