7. The computer-implemented system of claim 6 , wherein the XML snippet comprises a speech menu defining prompts and transitions in response to a nonresponsive user utterance.
7. The computer-implemented system of claim 6 , wherein the XML snippet comprises a speech menu defining prompts and transitions in response to a nonresponsive user utterance. 8. The computer-implemented system of claim 7 , wherein the nonresponsive user utterance is one or more responses selected from a group consisting of a silence, a mumble, and a word not applicable in current context.