Call-content determinative selection of interception access points in a soft switch controlled network
View Patent ↗By selecting access points specific to the various components of call-content of a call, a monitoring agency is ensured of obtaining the call-content of each participant in telephone call irrespective of call transfers and network reconfiguration. Devices in the telecommunications system such as network devices can provide appropriate access. Examples of suitable network devices may include gateway, an access gateways, trunk gateways, portals, ATM switches, routers, and border elements.
1. A method for enabling an agency to intercept the content of a call transiting a telecommunications network, the call comprising a plurality of components, comprising:
identifying, for each component, a network device through which that component passes; and
intercepting the components at the respective identified network devices.
2. A method as set forth in claim 1 , where the step of identifying comprises identifying a network device through which the component will pass irrespective of a transfer or a reconfiguration of the call or a portion of the call.
3. A method as set forth in claim 1 , further comprising the step of conveying at least one component to a law enforcement agency.
4. A method as set forth in claim 1 , where the step of identifying a network device comprises the step of identifying a device controlled by a switch.
5. A method as set forth in claim 1 , where
at least one component originates at a subscriber participating in the call; and
the step of identifying a network device comprises the step of associating the subscriber with at least one network device.
6. A method as set forth in claim 5 , where the step of identifying a network device comprises the step of identifying a device not accessible to the subscriber providing the component.
7. A method as set forth in claim 6 , where the step of identifying a device not accessible to the subscriber comprises the step of configuring a device to be responsive to a soft switch and further comprising the step of providing a control path between the device and the soft switch.
8. A method as set forth in claim 1 , where the step of identifying a network device comprises the step of selecting a gateway, an access gateway, a trunk gateway, a portal, an ATM switch, a router, a network edge device, or a border element.
9. A method as set forth in claim 1 , where the telecommunications network is responsive to a plurality of soft switches.
10. A method for enabling an agency to intercept at least a portion of the content of subscribers participating in a call over a telecommunications network, the call comprising a plurality of components, comprising:
associating at least one subscriber with at least one network device not accessible to the subscriber, where the network device is controlled by a switch, the network device comprising a gateway, an access gateway, a trunk gateway, a portal, an ATM switch, a router, a network edge device, or a border element;
identifying, for each component, a network device through which the component will pass irrespective of a transfer or a reconfiguration of the call or a portion of the call;
intercepting one or more components at the respective identified network devices; and
conveying at least one component to a law enforcement agency.
11. A system for enabling an agency to intercept the content of a call transiting a telecommunications network, the call comprising a plurality of components, comprising:
means for identifying, for each component, a network device through which that component passes; and
a bearer path connection at each identified network device, the bearer path connection comprising means for intercepting the component.
12. A system as set forth in claim 11 , where the means for identifying comprises means for identifying a network device through which the component will pass irrespective of a transfer or a reconfiguration of the call or a portion of the call.
13. A system as set forth in claim 11 , further comprising a channel for conveying at least one component to a law enforcement agency.
14. A system as set forth in claim 11 , where the network device is responsive to a switch.
15. A system as set forth in claim 11 , where
at least one component originates at a subscriber participating in the call; and
the subscriber is associated with at least one network device.
16. A system as set forth in claim 15 , where the network device is not accessible to the subscriber.
17. A system as set forth in claim 16 , where the network device is responsive to the soft switch and further comprising a control path between the device and the soft switch.
18. A system as set forth in claim 11 , where the network device is a gateway, an access gateway, a trunk gateway, a portal, an ATM switch, a router, a network edge device, or a border element.
19. A system as set forth in claim 11 , where the telecommunications network is controlled by a plurality of soft switches.
20. A system for enabling an agency to intercept at least a portion of the content of subscribers participating in a call over a telecommunications network, the call comprising a plurality of components, comprising:
at least one network device with which a subscriber has been associated, where the network device is not accessible to the subscriber and responsive to a switch, and where the network device comprises a gateway, an access gateway, a trunk gateway, a portal, an ATM switch, a router, a network edge device, or a border element;
means for identifying, for each component, a network device through which the component will pass irrespective of a transfer or a reconfiguration of the call or a portion of the call;
a bearer path connection at each identified network device, the bearer path connection comprising means for intercepting the component; and
at least one bearer path connected to the bearer path connection, the bearer path comprising means for conveying the component to at least one law enforcement agency.
21. An apparatus for enabling an agency to intercept at least a portion of the content of a subscriber participating in a call over a telecommunications network, the call comprising a plurality of components, comprising:
at least one network device with which a subscriber has been associated, where the network device is not accessible to the subscriber and responsive to a switch, and where the network device comprises a gateway, an access gateway, a trunk gateway, a portal, an ATM switch, a router, a network edge device, or a border element;
means for identifying, for each component, a network device through which the component will pass irrespective of a transfer or a reconfiguration of the call or a portion of the call;
a bearer path connection at each identified network device, the bearer path connection comprising means for intercepting the component; and
at least one bearer path connected to the bearer path connection, the bearer path comprising means for conveying the component to at least one law enforcement agency.
22. A system for enabling an agency to intercept the content of a call transiting a telecommunications network, comprising:
a plurality of network devices through which the call passes; and
plurality of bearer path connections located each of the plurality of network devices through which the call passes, the bearer path connections comprising means for intercepting at least a portion of the content of the call on behalf of the agency.