Systems and methods of providing multi-homed tandem access

  • US 8,559,614 B2
  • Filed: 08/30/2012
  • Issued: 10/15/2013
  • Est. Priority Date: 05/20/2008
  • Status: Active Grant
First Claim
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1. A private packet network backbone exchange (PPNBE) for delivering a call using multi-homed access, comprising:

  • a private packet network;

    a logical call control entity, the logical call control entity coupled to the private packet network and to a single logical routing database, and the logical call control entity in signaling communication with a plurality of access exchanges and with an endpoint to which a call is to be delivered;

    an originating connection between the private packet network and each of the plurality of access exchanges; and

    a terminating connection between the private packet network and the endpoint, wherein;

    the endpoint is indicated by each Terminal Number (TN) in a set of TNs,each TN in the set of TNs corresponds to a respective LRN (Local Routing Number) in a set of LRNs,each LRN in the set of LRNs is homed to a respective access exchange of the plurality of access exchanges,the private packet network is configured to receive the call, the call including a selected TN from the set of TNs,a content of the call is received by the private packet network over a corresponding originating connection from a corresponding access exchange, andthe private packet network is further configured to deliver, based on the selected TN and based on an indication from the logical call control entity in conjunction with the single logical routing database, the call from the corresponding originating connection to the terminating connection and the endpoint.

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