Abstract: An intelligent network comprises switching units interconnected to provide connections between originating users and terminating users. The intelligent network includes a set of SCPs which can be accessed by the switching units through a signalling network. The SCPs contain individual service profiles which define the individual services provided to users of the network as originating users and individual service profiles which define the individual services provided to users as terminating users. During call set-up, a service control program which acts as agent for the originating user is generated from the service profile for the originating user as an originating user and a service control program which acts as agent for the terminating user is generated from the service profile for the terminating user as a terminating user. The two control programs then enter a dialogue with each other in order to generate call control instructions.