INTERRUPT-BASED SYSTEM
 Inventors: Hosagrahar Visvesvaraya Jagadish;
Inderpal Singh Mumick, both of
Berkeley Heights; Abraham
Silberschatz, Summit, all of N.J.
 Assignee: AT&T Corp, Middletown, N.J.
 Appl. No.: 525,931
 Filed: Sep. 8, 1995
 Int. CI.6 G06F 15/16; H04N 7/10
 U.S. CI 395/200.59; 395/200.55;
395/200.49; 707/10; 348/7
 Field of Search 395/200.01, 200.06,
395/200.12, 187.01, 188.01, 200.11, 2.82, 352, 353, 232, 610, 200.49, 200.55, 200.59, 200.54; 348/7; 455/4.2; 705/32; 704/273;
345/352, 353; 707/10
 References Cited
U.S. PATENT DOCUMENTS
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Primary Examiner—Mark H. Rinehart  ABSTRACT
An apparatus and method provide an interrupt-based add-on service for use in a service subscription system having a central service provider and at least one subscriber unit. The interrupt-based system includes a database for storing subscriber information specific to at least one subscriber, where the subscriber information includes at least one subscriber selectable condition. The system further includes a computer for interrupting a service request when the service request satisfies at least one subscriber selectable condition and for making a service connection when the service request does not match the subscriber selectable condition.
22 Claims, 5 Drawing Sheets