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Method and system for supporting the communication of presence information among computing devices of a network

  • US 7,552,204 B2
  • Filed: 05/15/2002
  • Issued: 06/23/2009
  • Est. Priority Date: 05/15/2002
  • Status: Expired due to Fees
First Claim
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1. A method in a client computing device for assigning presence agent functionality to the client computing device, the client computing device operating a presence user agent for generating presence information pertaining to a user, the method comprising:

  • determining if a server computing device has presence agent functionality;

    when it is determined that the server computing device does have presence agent functionality, executing software for sending presence information pertaining to the user to the server computing device; and

    when it is determined that the server computing device does not have presence agent functionality, registering with a registrar as a presence agent on behalf of the user, wherein the client computing device receives subscription messages from watchers to subscribe to presence information of the user and transmits presence information to the watchers so that the client computing device functions as the presence agent for the user, rather than the server computing device.

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