An overview of an experimental environment able to support distance learning sessions is presented. In particular the system is capable of carrying out distance learning sessions between two workstations using Netscape graphic user interface and a number of Java applets for handling the control of the system. Preferred address for correspondence: Prof. Franco Davoli DIST - University of Genoa Via Opera Pia 13 I--16145 Genova Italy tel.: +39 10 353 2732 fax: +39 10 353 2948 tlx: 272399 DIE GE I e-mail: firstname.lastname@example.org 1 Introduction Tele-teaching (or Distance Learning) is a notable service for the future high speed telecommunication networks. If one wants to exploit the possibilities offered by the technology, the whole scenario can become quite complex, since it heavily involves the use of different media such as video, voice, still images and animations that have to be coordinated in real time; it also has to offer full interactivity between lecturer and students ..