Disclosed is a method for transmitting data between a subscriber terminal (MT) and at least one service providing component (MMS-Server 1, MMS-Server 2, MMS-Server 3) associated with a service provider, which are connected to each other by a network (UTRAN, SGSN, GGSN). According to said method, when a communication link is set up between the subscriber terminal and the service providing component, access information for the at least one service providing component is requested by a storage means associated with the subscriber terminal. By providing exclusively specific access information for specific service providing components on said storage means associated with a subscriber or a subscriber device, such as a SIM card or a USIM application on a UICC card, the network operator can prevent a subscriber from using other service providing components of other specific service providers different from those prescribed thereto when a specific data service is requested.