14. A system, comprising: a logic device configured to: receive a telephone number provided to a caller by an operator in response to voice input from the caller, identify a listing associated with the telephone number, and generate a variation associated with at least a portion of the listing based on the voice input, the variation comprising an alternative way to at least the portion of the listing; determine a number of times a given voice input was received from callers, and modify a grammar used for performing speech recognition after the given voice input has been received from callers a predetermined number of times.
14. A system, comprising: a logic device configured to: receive a telephone number provided to a caller by an operator in response to voice input from the caller, identify a listing associated with the telephone number, and generate a variation associated with at least a portion of the listing based on the voice input, the variation comprising an alternative way to at least the portion of the listing; determine a number of times a given voice input was received from callers, and modify a grammar used for performing speech recognition after the given voice input has been received from callers a predetermined number of times. 18. The system of claim 14 , wherein, the logic device further stores a plurality of audio files corresponding to voice inputs provided by callers and which have been forwarded to operators.