Abstract: A telecommunications environment includes a switch for connecting calls placed by a caller in response to an advertising campaign. The advertising campaign is identified by a particular directory number (the “campaign number”). The switch monitors calling information related to the call and forwards that calling information to a data recorder. The calling information includes the directory number of the party placing the call, the directory number called, whether the call was connected, the duration of the call, and other information. The data recorder passes the calling information for each advertising campaign to a web server where the calling information is accessible over the Internet. In this manner, a subscriber may connect to the web server over the Internet and request a report on the effectiveness of the advertising campaign.