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System and method for determining and communicating presence information

  • US 9,942,394 B2
  • Filed: 10/28/2016
  • Issued: 04/10/2018
  • Est. Priority Date: 09/21/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • responsive to a presence status change of a first client application of a first client device, the first client device providing presence information of the first client application for a first account to an external presence server via an API of the presence server;

    the first client device providing a first presence request to the presence server via the API, the first presence request being a request for presence information for a first contact list of a plurality of accounts specified by the first presence request;

    the first client device receiving the presence information for the first contact list from the presence server via the API;

    the first client device processing the presence information of the first presence request by using the first client application;

    the first client device providing a second presence request to the presence server via the API, the second presence request being a request for presence information for the first contact list;

    the first client device receiving the presence information of the second presence request from the presence server via the API;

    the first client device processing the presence information of the second presence request by using a second client application of the first client device; and

    responsive to a presence status change of a third client application of a second client device of a second account, the second client device providing presence information of the third client application for the second account to the presence server via the API of the presence server.

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