AbstractIn Europe, second generation equipment for mobile telecommunications will operate in the WMHz band as defined by the Groupe Spécial Mobile (GSM) of the European Conference of Posts and Telecommunications (CEPT). By contributing to and complying with these recommendations, Alcatel, in cooperation with Nokia and AEG, has contributed in developing a pan‐European digital Cellular mobile‐Radio system, the ECR900.This system is based on the Intelligent Network (IN) concept. The Alcatel E10 and the System 12 digital switches are compatible IN components and naturally accommodate the ECR900 system.Outside these digital exchanges, specific mobile functions are concentrated at mobile‐radio service control points, built on ALCATEL8300 telecommunication processors.The ECR900 system has already been ordered in France for the GSM Mobile‐Radio network, in the Federal Republic of Germany and in the Net