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High availability distributed call processing method and apparatus

  • US 6,298,039 B1
  • Filed: 01/31/1998
  • Issued: 10/02/2001
  • Est. Priority Date: 01/31/1998
  • Status: Expired due to Fees
First Claim
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1. A method of delivering high-reliability, fault-tolerant communications services within a telecommunications network comprising the steps ofidentifying a set of objects within the telecommunications network requiring checkpointing wherein said set of objects are identified by first, determining a set of global objects within the telecommunications network requiring checkpointing;

  • second, identifying duplicate objects within the global object set;

    third, determining, which ones of said duplicate objects require checkpointing; and

    fourth, eliminating, from the global object set, duplicate objects which do not require checkpointing;

    checkpointing the objects upon the occurrence of a particular event; and

    restoring the checkpointed objects upon the occurrence of a predetermined event.

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