System that includes a web server (2) enabling the user to access, from a remote computer (5), several nodes (1) that include a primary node server (11), which is connected to: —a management database (12); —at least one PABX (13), —at least one video server (14); —and a number of representative rooms (15), where there is a telephone terminal (16) connected to one of the PABXs (13) and a webcam (17) or video camera connected to one of the video servers (14), enabling two-way voice transmission between the representative and the user, by means of telephone communication through the telephone terminal (16) and the telephone (4), and one-way transmission of video images from the webcam (17) to the user's remote computer (5).