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Call processing for group conferencing

  • US 8,078,155 B2
  • Filed: 06/30/2009
  • Issued: 12/13/2011
  • Est. Priority Date: 06/30/2008
  • Status: Active Grant
First Claim
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1. A method of providing call processing for group conferencing, comprising:

  • associating cellular telephone numbers assigned to a predetermined group of subscriber cellular devices with a routable telephone number in a database whereby calls to the routable telephone number are routed to a gateway mobile switching center of a cellular service provider;

    receiving a first call placed to the routable telephone number with the gateway mobile switching center;

    accessing the database and retrieving the telephone numbers assigned to the group of cellular subscriber devices and associated with the routable telephone number;

    determining which subscriber devices are within the geographical coverage area of the cellular service provider;

    initiating calls to the cellular telephone numbers assigned to the group of cellular subscriber devices of the cellular subscriber devices in the cellular service provider'"'"'s geographical coverage area;

    initiating a ring timer;

    detecting a first answer from at least one of the called cellular subscriber devices;

    connecting the first call to the first answering cellular subscriber device with a conference bridge;

    detecting one or more subsequent answers from at least one of the called cellular subscriber devices; and

    connecting cellular subscriber devices from the group of cellular subscriber devices that answer after the first answering cellular subscriber device and before the ring timer lapses.

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