ISDN, initial results: lessons for tomorrow
M. Trouvat, P. Azema, G. de Passoz, M. Levy, T. Morin, J.C. Pennanec' H · 2003
ISDN opened in France at the end of 1987 with the connection of some fifty professionals and businesses. The service is being extended rapidly. The authors give the results that have been obtained from this operation in its development phase as well as the first months of operation. They focus on the main successes and/or problems that will define the extension and development of ISDN in the coming years.>