A network infrastructure device in a voice over packet (VOP) network includes a transceiver and a processor. The transceiver can transmit and receive communications over a VOP network. The processor, responsive to receipt of a call setup information request (CIReq) specifying a particular target, can associate a public identifier with the particular target, and map the public identifier to an internet protocol (IP) address responsive to a communication. Also, the processor can identify communications to and/or from the particular target with the IP address. Further, responsive to receiving communications to and/or from the IP address, the processor can transmit the communications to a law enforcement agency (LEA) collection device.

 
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> Server that obtains information from multiple sources, filters using client indentities, and dispatches to both hardwired and wireless clients
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