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Call processing system, method and computer program product

  • US 6,088,437 A
  • Filed: 03/12/1999
  • Issued: 07/11/2000
  • Est. Priority Date: 04/23/1998
  • Status: Expired due to Fees
First Claim
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1. A virtual network call processing system, comprising:

  • a communication line interface configured to be connected to a source terminal and receive a calling message from the source terminal directed to an intended recipient;

    a call processor with a call pullback mechanism including,a data processor, anda computer readable memory having computer readable instructions encoded therein that when executed by said data processor implement a central office switch characterization mechanism that characterizes signaling attributes of signals produced by one of a plurality of central office switches that service different geographical locations, said plurality of central office switches each having a different frequency and cadence signal event characteristic; and

    a signal determination mechanism configured to determine whether the signals produced by said one of said plurality central office switches includes at least one of a fast busy signal, slow busy signal, ringing signal, answered signal, and ring-no-answer signal, wherein said signal determination mechanism is not informed of the frequency or cadence of the signals before said signal event occurs.

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