Abstract: Technology is described for a non-mobile telephone system which in addition to processing voice signal data and performing telephone functions, can execute applications transferring data responsive to user input received through a graphical user interface of the telephone system. The non-mobile telephone includes a telephony processing system for performing telephone functions, and an applications processing system for executing applications. The two processing systems communicate using a communication protocol between them which is independent of a telecommunication protocol used for voice signal data processed by the telephony processing system.