A speech recognition system recognizes spoken utterances received as a
speech signal from a user. A prompt for requesting a spoken utterance from
the user is assigned a response identifier which indicates at least one of
a plurality of speech recognizers to best recognize a particular type of
spoken utterance. The system includes a processor for receiving the speech
signal from the user in response to the prompt. The processor also directs
the speech signal to the at least one speech recognizer indicated by the
response identifier. The speech recognizer generates a plurality of spoken
utterance choices from the speech signal and a probability associated with
each of the plurality of choices. At least one of the spoken utterance
choices is selected based on the associated probabilities.