Advanced intelligent network (AIN) functionality for electronic surveillance
First Claim
1. A telecommunications system comprising:
- a switched telephone network including program controlled switching systems connected by trunks and connected by links to subscriber terminals;
a separate control network having packet switching systems connected to said program controlled switching systems and to a central control, said central control having processor and storage devices controlling through said control network routing of communication paths through said switched telephone network;
a first subscriber terminal connected to a first of said program controlled switching systems by a first of said links;
a second subscriber terminal connected to a second of said program controlled switching systems by a voice and data link;
a storage associated with said central control and connected to said second subscriber terminal by a data link;
said first program controlled switch having programmed therein triggers actuated by the occurrence of predetermined points in call wherein actuation of at least one of said triggers initiates signaling through said control network to said central control and storage in said storage associated with said central control of data including information regarding connections established through said telephone network between said first subscriber terminal and a third subscriber terminal connected to one of said program controlled switching systems, and wherein at least a part of said information is transmitted from said storage associated with said central control to said second subscriber terminal via said data link connecting said second subscriber terminal and said storage associated with said central control.
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Accused Products
Abstract
Following the Communications Assistance for Law Enforcement Act (CALEA), the FBI developed a standard set of communication services and interfaces. for lawfully authorized electronic surveillance, for both call data recording and content recording. Existing public switched telephone networks use a variety of switches. Not all of the switches in use are capable of performing the routines required by the CALEA standards. In accord with the invention, Advanced Intelligent Network (AIN) and/or Local Number Portability (LNP) functionality controls routing and billing of incoming and outgoing calls for the surveillance target. The routing is handled in such a manner that calls to and from the target are directed to a regional switching office which performs those functions for switches in the region which lack that capability. Through this arrangement call detail records (CDRs) regarding the target are accumulated and transferred to a law enforcement authority. If the surveillance of a particular target also requires monitoring of the content of the target'"'"'s calls, the calls are routed through a switch or an Intelligent Peripheral (IP) having the requisite surveillance capability.
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Citations
38 Claims
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1. A telecommunications system comprising:
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a switched telephone network including program controlled switching systems connected by trunks and connected by links to subscriber terminals;
a separate control network having packet switching systems connected to said program controlled switching systems and to a central control, said central control having processor and storage devices controlling through said control network routing of communication paths through said switched telephone network;
a first subscriber terminal connected to a first of said program controlled switching systems by a first of said links;
a second subscriber terminal connected to a second of said program controlled switching systems by a voice and data link;
a storage associated with said central control and connected to said second subscriber terminal by a data link;
said first program controlled switch having programmed therein triggers actuated by the occurrence of predetermined points in call wherein actuation of at least one of said triggers initiates signaling through said control network to said central control and storage in said storage associated with said central control of data including information regarding connections established through said telephone network between said first subscriber terminal and a third subscriber terminal connected to one of said program controlled switching systems, and wherein at least a part of said information is transmitted from said storage associated with said central control to said second subscriber terminal via said data link connecting said second subscriber terminal and said storage associated with said central control. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A telecommunications system comprising:
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a switched telephone network including program controlled switching systems connected by trunks and connected by links to subscriber terminals;
a separate control network having packet switching systems connected to said program controlled switching systems and to a central control, said central control having processor and storage devices controlling through said control network routing of communication paths through said switched telephone network;
a first subscriber terminal connected to a first of said program controlled switching systems by a first of said links;
a second subscriber terminal connected to a second of said program controlled switching systems by a voice and data link;
a storage associated with said central control and connected to said second subscriber terminal by a data link;
an adjunct processor device connected to said second subscriber terminal by a voice and data link, and connected to one of said program controlled switching systems by a dedicated voice and data link;
at least a portion of said program controlled switching systems connected to said one of said program controlled switching systems by dedicated voice and data communication capacity;
at least one of said program controlled switches having programmed therein trigger objects actuated by the occurrence of predetermined points in call wherein actuation of at least one of said triggers initiates signaling through said control network to said central control and signaling to said adjunct processor device whereby a connection established through said telephone network between said first subscriber terminal and a third subscriber terminal connected to one of said program controlled switching systems is bridged to said second subscriber terminal at said adjunct processor device. - View Dependent Claims (22, 23, 24, 25)
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26. In a telecommunications system comprising:
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a switched telephone network including program controlled switching systems connected by trunks and connected by links to subscriber terminals;
a separate control network having packet switching systems connected to said program controlled switching systems and to a central control, said central control having processor and storage devices controlling through said control network routing of communication paths through said switched telephone network;
a first subscriber terminal connected to a first of said program controlled switching systems by a first of said links;
a second subscriber terminal connected to a second of said program controlled switching systems by a voice and data link;
a storage associated with said central control and connected to said second subscriber terminal by a data link;
a method comprising;
responsive to an attempt to establish connections through said telephone network between said first subscriber terminal and a third subscriber terminal connected to one of said program controlled switching systems, signaling through said control network to said central control;
storing in said storage associated with said central control of information regarding connections established through said telephone network between said first subscriber terminal and a third subscriber terminal connected to one of said program controlled switching systems; and
transmitting at least a part of said information from said storage associated with said central control to said second subscriber terminal via said data link connecting said second subscriber terminal and said storage associated with said central control. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. In a telecommunications system comprising:
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a switched telephone network including program controlled switching systems connected by trunks and connected by links to subscriber terminals;
a separate control network having packet switching systems connected to said program controlled switching systems and to a central control, said central control having processor and storage devices controlling through said control network routing of communication paths through said switched telephone network;
a first subscriber terminal connected to a first of said program controlled switching systems by a first of said links;
a second subscriber terminal connected to a second of said program controlled switching systems by a voice and data link;
a storage associated with said central control and connected to said second subscriber terminal by a data link;
an adjunct processor device connected to said second subscriber terminal by a voice and data link, and connected to one of said program controlled switching systems by a dedicated voice and data link;
at least a portion of said program controlled switching systems connected to said one of said program controlled switching systems by dedicated voice and data communication capacity;
a method comprising;
programming at least one of said program controlled switches trigger objects actuated by the occurrence of predetermined points in call;
responsive to said trigger objects signaling through said control network to said central control and signaling to said adjunct processor device;
establishing a connection through said telephone network between said first subscriber terminal and a third subscriber terminal connected to one of said program controlled switching systems; and
bridging said second subscriber terminal to said connection at said adjunct processor device. - View Dependent Claims (37, 38)
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Specification