DoublePositive is a marketing service designed to find and capture good leads for clients. These leads are competitively priced and custom filtered according to the client's specifications. DoublePositive makes contact with potential leads and confirms their interest before transferring them to the client's sales professionals. Clients are only billed for callers who opt to speak with the sales team and stay on the phone for a significant period of time. Integration with DoublePositive's services is accomplished via SOAP API.