Method and system for providing calling number restoral

Details Method and system for providing calling number restoral Method and system for providing calling number restoral

2003-08-18

2010-02-16

Addy, Thjuan K (Department: 2614)

Telephonic communications

Special services

Anonymous party

C379S201010, C379S210030, C379S211020, C379S212010

Reexamination Certificate

active

07664244

ABSTRACT:
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.

REFERENCES:
patent: 5778052 (1998-07-01), Rubin et al.
patent: 5805820 (1998-09-01), Bellovin et al.
patent: 5832072 (1998-11-01), Rozenblit
patent: 5958052 (1999-09-01), Bellovin et al.

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