(12) United States Patent ao) Patent No.: us 6,633,633 Bi
Bedingfield (45) Date of Patent: Oct. 14,2003
(54) METHOD AND SYSTEM FOR PROVIDING CALLING NUMBER RESTORAL
(75) Inventor: James C. Bedingfield, Lilburn, GA (US)
(73) Assignee: BellSouth Intellectuel Property
Corporation, Wilmington, DE (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl. No.: 09/468,888
(22) Filed: Dec. 22, 1999
(51) Int. C I. I HUM 3/42
(52) U.S. CI 379/201.11; 379/207.02
(58) Field of Search 379/207.02, 201.11;
713/201; 455/432
(56) References Cited
U.S. PATENT DOCUMENTS
5.701.301 A 12/1997 Weisser, Jr. 370/428
5,838,774 A 11/1998 Weisser, Jr. 379/92.02
5,958,052 A * 9/1999 Bellovin et al 713/201
6.055.302 A * 4/2000 Schmersel et al 379/207.02
A system and method for restoring the original calling number in a call routed through an out-of-network enhanced service provider to a forwarding destination. The system comprises a service control point, a service switching point in communication with the service control point, and an enhanced service provider service node in communication with the service switching point, wherein the service node is located outside of a network while the remaining components reside within the network, and wherein the service switching point is provisioned with two triggers: an incoming trigger for calls to the service node and an outgoing trigger for calls from the service node. According to the method, the service control point, in response to the incoming trigger, removes and stores the private call information of a call exiting the network and, in response to the outgoing trigger, restores that private call information to the call once the call re-enters the network.
24 Claims, 3 Drawing Sheets
