×

Systems and methods for controlling authorized intercept

  • US 6,738,902 B1
  • Filed: 01/14/2000
  • Issued: 05/18/2004
  • Est. Priority Date: 01/14/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of controlling communications intercepts in a communications system comprising the steps of:

  • maintaining a list of subscriber unit IDs at a network intercept facility, each subscriber unit ID appearing in encrypted and plain form, and providing an encrypted intercept order from the network intercept facility to the communications system, the encrypted intercept order comprising the encrypted form of the subscriber unit ID assigned to a subscriber unit whose communication is desired to be intercepted and wherein the encrypted intercept order is encrypted separately from the encrypted subscriber unit ID.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×