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Voice-over-IP enabled chat

  • US 8,355,349 B2
  • Filed: 12/21/2009
  • Issued: 01/15/2013
  • Est. Priority Date: 06/07/1999
  • Status: Expired due to Fees
First Claim
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1. A method for establishing a voice call between a plurality of chat participants comprising:

  • receiving a first message from a first chat participant requesting establishment of a voice call;

    sending a response message to the first chat participant providing voice call session information and an authorization code;

    receiving a second message comprising the voice call session information and the authorization code from a second chat participant requesting participation in the voice call, wherein the first chat participant passes the voice call session information and the authorization code as a private message in a chat conversation to the second chat participant;

    setting up a first voice link to the first chat participant;

    setting up a second voice link to the second chat participant, wherein one of the first voice link and the second voice link is a public switched telephone network link;

    bridging the first voice link and the second voice link so as to establish the voice call between the first chat participant and the second chat participant; and

    wherein if the public switched telephone network link is unavailable;

    determining if a subscriber line portion of the public switched telephone network link is in current use in an internet session through a respective internet service provider access server, wherein the public switched telephone network link is capable of supporting one of a text chat and an other data connection;

    forwarding the voice call to a network node having access to the internet session;

    sending a third message to the internet session indicating an arrival of an incoming voice call; and

    converting the voice call to one of a streaming audio and an internet voice call.

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