Privacy screening service with a bypass code

摘要

An advanced intelligent network privacy screening service that allows callers provided with a bypass code to bypass the privacy screening. A termination attempt trigger is provisioned on the subscriber's line at a service switching point. When callers from private or unknown numbers call the subscriber, the call is routed to a service node that plays an announcement to the caller to start the privacy screening process. The caller can then enter the bypass code to bypass the privacy screening. A subscriber to the privacy screening service can change his or her bypass code by calling a system administration number, and entering his or her password and bypass code.