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Advanced intelligent network (AIN) functionality for electronic surveillance

  • US 6,078,648 A
  • Filed: 07/09/1998
  • Issued: 06/20/2000
  • Est. Priority Date: 07/09/1998
  • Status: Expired due to Term
First Claim
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1. A method of communicating via a switched telephone network comprising:

  • a) equipping a first program controlled switching node in said network with a first processor and storage compiling surveillance data regarding communications with stations subject to surveillance;

    b) programming a first controller including a processor and storage to control routing in said network, and compiling in said storage data identifying said stations subject to surveillance;

    c) programming a second processor and storage to control number portability routing, and compiling in said storage data identifying stations subject to having their numbers ported;

    d) monitoring dialed numbers at program controlled switching nodes in said network, detecting the dialing of a number subject to surveillance, and routing the detected call to said first program controlled switching node in said network with said first processor and storage;

    e) processing data derived from the routing of said detected call in said processor and storage;

    f) monitoring dialed numbers at program controlled switching nodes in said network, detecting the dialing of an NPA-NXX subject to porting, and routing the detected call to the NPA-NXX porting node.

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