1. A method for improving the recognition confidence of alphanumeric spoken input, suitable for use in a telephony application, said method comprising the steps of: determining an alphanumeric candidate from spoken input; determining present call data associated with a source of the spoken input; based on the alphanumeric candidate, creating a plurality of call data possibilities, wherein each of the plurality of call data possibilities is associated with historical call data; and comparing the present call data with the historical call data to select alphanumeric information to represent the spoken input.