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Packet switching control system and method

  • US 6,980,512 B2
  • Filed: 04/23/2001
  • Issued: 12/27/2005
  • Est. Priority Date: 10/26/1998
  • Status: Expired due to Term
First Claim
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1. A packet switching control system for controlling a packet switched connection between a subscriber terminal (1) and an end terminal (5) identified by a connection endpoint identification in a communication network (4), comprising:

  • storing means for storing a subscriber-specific screening list for a plurality of connection endpoint identifications;

    control means (7) for performing a screening control of the packet switched connection on the basis of a screening parameter corresponding to the connection endpoint identification of the end terminal (5), wherein said control means (7) belongs to a different entity than said storing means; and

    screening means for performing a screening process, using the screening list, for each packet wherein a connection endpoint identifier (CEI) of each packet is checked as to allowed destination, and packets are passed when the destination is allowed whereas data packets from/to unallowed destinations are discarded.

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