The invention refers to a data terminal activation and control device (16), a WAP server and a method for enabling a WAP radiotelephone terminal (20) to remotely activate and control a distant data terminal (14). The data terminal (14) is coupled to the activation and control device (16) by means of a data transmission network (26). The activation and control device (16) is coupled to the radiotelephone terminal (20) across a radiotelephone network (24). To permit to a user (18) of a WAP radiotelephone terminal (20) a convenient and powerful access to a data terminal (14) in order to activate and control the data terminal (14) it is suggested, to send a WAP message from the radiotelephone terminal (20) to the activation and control device (16) across the radiotelephone network (24); to convert the WAP message into a message that can be interpreted by the data terminal (14), and to send it to said data terminal (14); and to convert a message supplied by the data terminal (14) into a WAP message and to send it to the WAP radiotelephone terminal (20).