Abstract: The present invention relates to a terminal interface and an arrangement including the terminal interface to enable interfacing between an electronic device and a service provider. The terminal interface comprises at least a data interface arranged for coupling the terminal interface to the electronic device, a processing means adapted to operate the terminal device, and modem means enabling data communication between the interface terminal and a terminal device enabled for voice commutation in a public land mobile communications network. The data processing means coupled to the data interface and the modem means is further configured for processing data received from either of the data interface and the modem means and for generating data to be transmitted via the data interface and/or the modem means. Data is communicated between the interface terminal and the service provider via the terminal device on a voice communication connection through the public land mobile communications network.