Abstract: A method of advertising a product, comprising assigning a respective telephone number to a plurality of advertising media elements is disclosed. Telephone numbers are assigned and calls are forwarded to be answered by a sales person or persons. The assignment of the telephone numbers to the sales person or persons is communicated to a computer based telephone services provider. The associated telephone number assignments are imprinted, audibly communicated or otherwise included in their respective advertising media elements. Response information such as the number of calls received by the telephone numbers in response to the advertising is recorded.