Toll denial
From Wikipedia, the free encyclopedia
Toll denial is a feature offered by telephone companies that allows a line to be so programmed that it is not possible to originate long distance calls from that line, or to accept charges reversed to the number by other parties. Such lines usually allow calls to be made to no-charge numbers, locally and "toll free" (in North America, 800, 888, 877, 866), so that customers can still make long distance calls on a manageable basis.
Sometimes, telephone companies require customers to accept toll denial due to high risk account conditions and the customer's need for service for personal security or health.
