20. A speech recognition method comprising: starting a synthesis of recorded speech to prompt a user to communicate a user choice, wherein an element in a recognition set corresponds to the user choice; receiving a user speech input signal providing information regarding the user choice; detecting an initial portion of the user speech input signal; echo canceling the user speech input signal using data corresponding to said recorded speech in response to detecting the initial portion of the user speech input signal; and recognizing the user choice, wherein the recognizing includes determining the element in the recognition set which corresponds to the user choice.
21. The method of claim 20 further comprising decreasing a voice recognition threshold corresponding to a none of the above (NOTA) result when the user speech input signal is received prior to the start of the recorded speech.