Method for a terminal using services offered by a master station and a terminal

DETAILED DESCRIPTION The method and terminal according to the present invention have the advantage that very complex services can be used by terminals that have only limited input possibilities.
In this context, for using such a complex service, it is only required for a service identification allocated to the service to be selected to be input at a control unit of the terminal.
In this context, such an input of a service identification can be carried out most easily using a ten-key pad of the terminal.
A further advantage exists when a terminal according to the present invention is used in a vehicle since the driver must only input the service identification for activating the service he desires at the control unit of the terminal and, therefore, is not significantly impaired in his attention to the traffic so that traffic safety during the operation of such a terminal is increased.
A further advantage is that, because of merely inputting the service identification at the control unit of the terminal for activating the appertaining desired service, no information or parameters on the service to be activated must be stored in the terminal so that memory space is saved in the terminal.
The terminal can be implemented independently of the services offered by the master station since the service data generated by the master station is adapted to the possibilities and the scope of functionality of the terminal requesting the corresponding service.
In this manner, no additional outlay is required in the terminal for implementing the method according to the present invention so that conventional terminals can be used and no additional manufacturing effort or outlay of material or space exists for the terminal.
It is an advantage that a user identification is transmitted to the master station by the activation data, and that the master station transmits the service data to a first terminal only if the user identification matches user data stored in the master station.
In this manner, a check of the access authorization for the services offered by the master station is made possible in a simple manner