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Intelligent-cellular-forwarding-system

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Intelligent cellular forwarding system

Details

Inventors: Silverman, David Phillip;
Assignee: Lucent Technologies Inc. (Murray Hill, NJ)
Primary Examiner: Hunter; Daniel
Assistant Examiner: Corsaro; Nick
Attorney, Agent or Firm: Darby & Darby

An intelligent call forwarding system for routing incoming calls to at least one of a plurality of alternate communication devices when a called party cellular communication device installed in a vehicle is unavailable to directly receive the call. The system includes a plurality of cell sites disposed at predetermined geographical locations for providing cellular communication service to the called party cellular communication device. An active cell site that provides cellular communication service to the called party cellular communication device is stored in a memory device. Each cell site is related to at least one alternate communication device that is nearest in geographical location thereto. When an incoming call is received and the cellular communication device is "unavailable", a cellular central office selects an alternate communication device that is mapped to the most recent active cell site stored in the memory device, and the incoming call is forwarded to the selected alternate communication device via a network. In a preferred embodiment the memory device stores a history of most recent active cell sites and determines the direction of travel of the vehicle therefrom. The system can automatically and intelligently predict which alternate communication device to forward the incoming call to based on the direction of travel and the most recent active cell site.

DETAILED DESCRIPTION The present invention is directed to an intelligent call forwarding system for routing incoming calls to at least one of a plurality of alternate communication devices when the incoming call is not able to be transmitted directly to the called party cellular communication device.
The call forwarding system in accordance with the present invention is "intelligent" in that it tracks the vehicle along its path of travel by monitoring the cell site that currently provides communication service to the called party cellular communication device.
By tracking the history of most recent active cell sites, when the incoming call can not be transmitted directly to the called party cellular communication device, the system can automatically predict an alternate communication device where the subscriber is most likely to be reached and route the call accordingly.
In a preferred embodiment, the intelligent call forwarding system in accordance with the present invention includes a plurality of cell sites for providing communication service to the called party cellular communication device.
Information from the cell site that is currently providing cellular communication service to the called party cellular communication device is stored in a memory device.
A cellular central office selects at least one of the plural alternate communication devices based on the stored most recent active cell site, and the incoming call is forwarded via a network to the selected alternate communication device based on the stored most recent active cell site, when the called party cellular communication device is unavailable.
Furthermore, the present invention is directed to a method for using the intelligent call forwarding system described in the previous paragraph.
The cell site that is currently providing communication service to the called party cellular communication device is monitored as the vehicle travels and information regarding the current active cell site is stored in the memory device.
At least one of the plural alternate communication devices are selected based on the most recent active cell site stored in the memory device

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