Patent ID: 6577865
Filing Date: 2003-06-10
Classification: H04L,H04M,H04W

Abstract:
A system for intercept of wireless communications, comprising:a home location register (HLR) including one or more surveillance flags associated with a subscriber served by the HLR, wherein the flag(s) indicate one or more aspects of the subscriber's wireless communications are to be monitored; a gateway delivery function unit for provisioning the surveillance flags, and receiving call associated information for a subscriber under surveillance, wherein the gateway delivery function unit functions to synchronize surveillance activities between a number of mobile switching centers (MSCs) and the HLR, such that only a selected subset of the MSCs connected to the HLR are monitored; and a delivery function unit, provisioned by the gateway delivery function unit, receiving call associated information for intercepted call from the gateway delivery function unit, and call content from the MSC, and directing the call information and call content to a desired location such that the gateway delivery function unit provisions the delivery function unit according to the custom requirements of a court ordered wire tap.