From thousands of such contacts with the public, a firm can develop a valuable database that produces many informational reports. Many companies use telemarketing centres in this way.
As an example, the Westinghouse Credit Corporation uses telemarketing to qualify leads and develop live prospects for its field sales force. Specialists at the Westinghouse telemarketing centre call prospects to determine interest level and to verify addresses. Having qualified several prospects, they call in the leads to the various sales branch offices.