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System for negotiating conferencing capabilities by selecting a subset of a non-unique set of conferencing capabilities to specify a unique set of conferencing capabilities

  • US 5,859,979 A
  • Filed: 10/21/1997
  • Issued: 01/12/1999
  • Est. Priority Date: 11/24/1993
  • Status: Expired due to Term
First Claim
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1. A computer-implemented process for negotiating conferencing capabilities, comprising the steps of:

  • (a) transmitting a request from a first node to a second node to establish a point-to-point conference between the first node and the second node, wherein;

    the request identifies a first non-unique set of conferencing capabilities of the first node; and

    a set of conferencing capabilities is unique only if each conferencing capability of the set of conferencing capabilities is specified uniquely;

    (b) transmitting a response from the second node to the first node, wherein;

    the response identifies a second set of conferencing capabilities of the second node; and

    the second set is a subset of the first set and the second set corresponds to fewer conferencing capabilities than the first set; and

    (c) conferencing between the first node and the second node based on the second set only if the second set is a unique set of conferencing capabilities.

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