The invention relates to a method for operating a telecommunications system and to a corresponding telecommunications system comprising at least one centralized device and at least one telecommunications terminal device, which is configured for communicating with the centralized device and/or other telecommunications terminal devices. The invention is characterized in that one or more control programs are stored in the centralized device, whereby the control programs can be activated by signals of the telecommunications terminal device in order to initiate one or more functions in the telecommunications terminal device, in the centralized device and/or in other telecommunications terminal devices.