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Call-routing mechanism for automatically performing number substitution in an integrated access device

  • US 6,876,736 B2
  • Filed: 10/16/2001
  • Issued: 04/05/2005
  • Est. Priority Date: 10/16/2001
  • Status: Active Grant
First Claim
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1. A method for enabling a digital communication device to provide call connectivity therethrough of a call, that is coupled to a first port of said digital communication device and has a destination telephone number, to a second port of said digital communication device for delivery to a communication circuit intended to be reached by said destination telephone number, comprising the steps of:

  • (a) providing said digital communication device with a called number substitution mechanism that is operative to automatically selectively modify any of all the digits of which said destination telephone number is comprised;

    (b) processing said destination telephone number of said call, in accordance with said called number substitution mechanism, and selectively modifying said destination telephone number to the extent necessary to produce an output telephone number that conforms with connectivity requirements for said communication circuit; and

    (c) coupling said output telephone number to said second port of said digital communication device.

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