In a telephone communications system an Advanced Intelligent Network (AIN) platform is used to complete or block incoming calls to a subscriber in accordance with a threshold stored in the ISCP call processing record (CPR). The CPR contains a table of information that is customized in accordance with...http://www.google.co.uk/patents/US5524145?utm_source=gb-gplus-sharePatent US5524145 - Incoming call completion threshold restriction
