Web services and speech-based applications

VoiceXML applications are described by context-free grammars. Then, recognized vocabulary is limited. We show in this paper one possible approach in order to use VoiceXML applications and speech Web services, together. The idea is to use capabilities of speech-dictation systems when the input value is not recognized in an active grammar. A prototype of VoiceXML application using speech Web services is presented. A user can speak a free sentence, in English for instance, and receive a French translation, on the same modality (phone) or via another one (PC screen, for example)