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Restriction of communication service accessibility among subscriber communities

  • US 5,017,917 A
  • Filed: 12/30/1988
  • Issued: 05/21/1991
  • Est. Priority Date: 12/30/1988
  • Status: Expired due to Term
First Claim
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1. An arrangement comprising:

  • first means for assigning persons who are users of a communication system to ones of a plurality of user communities;

    second means for defining, for each one of said user communities, communication permissions with respect to individual ones of the other user communities;

    third means responsive to an attempted communication between two persons who are users for identifying the two users and determining the two identified users'"'"' assigned communities;

    fourth means responsive to the determination of the two users'"'"' assigned communities for determining from the second means whether the attempted communication between the two persons is permitted; and

    fifth means responsive to a determination that the attempted communication is permitted for enabling the communication, and further responsive to a determination that the attempted communication is not permitted for preventing the communication.

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