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Peer-to-peer telephone system

  • US 8,593,978 B2
  • Filed: 01/21/2010
  • Issued: 11/26/2013
  • Est. Priority Date: 07/16/2003
  • Status: Active Grant
First Claim
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1. A peer-to-peer system, comprising:

  • an administration node interconnected with a calling end-user device and a called end-user device via a peer-to-peer communication structure, the administration node configured to issue a user identity certificate to the calling end-user device responsive to the calling end-user device subscribing to the peer-to-peer system, and to issue an additional user identity certificate to the called end-user device responsive to the called end-user device subscribing to the peer-to-peer system;

    the user identity certificate configured to be provided by the calling end-user device to the called end-user device prior to commencing a call to the called end-user device as proof of subscription to the peer-to-peer system, and the additional authorization certificate configured to be provided by the called end-user device to the calling end-user device prior to commencing the call as proof of subscription to the peer-to-peer system;

    wherein prior to commencing the call, the additional user identity certificate enables verification by the calling end-user device that the called end-user device is subscribed to the peer-to-peer system, and the user identity certificate enables verification by the called end-user device that the calling end-user device is subscribed to the peer-to-peer system; and

    wherein the call can be established if the user identity certificate and the additional user identity are verified.

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