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Reduction of wireless communication costs in enterprises

  • US 9,788,256 B2
  • Filed: 05/28/2013
  • Issued: 10/10/2017
  • Est. Priority Date: 07/19/2007
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • determining, by a processor, a first change in a geo-location of a cellular phone as the cellular phone moves from a first location to a second location and a second change in a telephone number of the cellular phone from a first telephone number to a second telephone number, wherein the cellular phone is affiliated with a first private branch exchange;

    based on the first change and the second change, determining, by the processor, a second private branch exchange that has a least communication cost to the cellular phone at the second location; and

    determining, by the processor, a least-cost route from among a plurality of routes for a call between the first private branch exchange and the second private branch exchange; and

    based on the least-cost route, routing, by the processor, the call between the cellular phone and the first private branch exchange via the second private branch exchange, wherein routing the call comprises;

    routing the call from the second private branch exchange to the first private branch exchange via a server;

    dropping a portion of the call connecting the second private branch exchange to the first private branch exchange;

    replacing the dropped portion of the call with a new least-cost call that does not pass through the server; and

    connecting a remaining portion of the call with the new least-cost call.

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