Differentiated debiting in a gprs telecommunication and data communication system

The present invention relates to a telecommunication and data communication system including a debiting mechanism and a procedure for debiting. The system (10) includes a base station BS (14), a service network node SGSN (16) connected to said base station BS (14), an internal network (18) connected via said service network node SGSN (16), an external network (22) connected by means of a network interconnection node GGSN (20) with said internal network (18), a service server (24) connected to the external network (22), and a debiting mechanism. The present invention is characterized in that the debiting mechanism makes debiting variations possible, which are depending on the information content in the amount of data that is transmitted, and on to/from which service provider the amount of data is derived/transmitted. In the system according to the invention, the servicre network nodes SGSN (16) and the network interconnection nodes GGSN (20) generate Call Detail Records CDR, which separately account for amounts of data which hs been transmitted to, respective from, the service servers (24) of different service providers, at which a cost division is achieved. In one embodiment of the invention said division of costs is performed by an after-treatment device, and in another by the sevice network nodes SGSN (16) and the network interconnection nodes GGSN (20).