1. 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, generate a variation associated with at least a portion of the listing based on the voice input, the variation comprising an alternative way to identify at least the portion of the listing; a memory configured to store a plurality of audio files corresponding to voice inputs provided by callers and which were forwarded to operators.