A wireless communication system includes a smart device configured for transcribing text-to-speech (STT) for display. The smart device interfaces with a radio communications device, for example, in an aircraft (AC). The system includes a filter for optimizing STT functions. Such functions are further optimized by restricting the databases of information, including geographic locations, aircraft identifications and carrier information, whereby the database search functions are optimized. Methods for wireless communications using smart devices and STT functionality are disclosed.