2. The system of claim 1 , wherein when the preprocessing front-end indicates that the audio message contains no voice content, the preprocessing front-end generates text indicating that the caller called but did not leave a meaningful message.
2. The system of claim 1 , wherein when the preprocessing front-end indicates that the audio message contains no voice content, the preprocessing front-end generates text indicating that the caller called but did not leave a meaningful message. 3. The voice messaging system of claim 2 , wherein the voice messaging system transmits the text indicating that the caller called but did not leave a meaningful message to an intended recipient of the audio message.