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Secure telecommunications

  • US 5,392,357 A
  • Filed: 12/09/1991
  • Issued: 02/21/1995
  • Est. Priority Date: 12/09/1991
  • Status: Expired due to Term
First Claim
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1. A system enabling communications between a plurality of calling parties and a plurality of respective called parties via a switched telecommunications network, said system comprisingcustomer premise equipment connected to said switched telecommunications network for originating calls from said calling parties to said called parties, each of said calls containing encrypted information,means in said network for routing each of said calls to a multi-user security node disposed in said switched telecommunications network, said node being arranged to process multiple calls simultaneously, andmeans in said security node arranged for each of said calls to (a) decrypt said encrypted information received from said customer premise equipment and (b) obtain information needed to route said call through said network, so that said encrypted information is communicated to said respective called parties in non-encrypted form.

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