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System and method for recognizing and routing telephone calls involving hearing or speech impaired persons

  • US 5,559,855 A
  • Filed: 11/29/1994
  • Issued: 09/24/1996
  • Est. Priority Date: 11/29/1994
  • Status: Expired due to Term
First Claim
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1. A system for recognizing and routing telephone call activity involving a hearing or speech impaired person, comprising:

  • a switching network having one or more switches for mounting telephone call activity, said telephone call activity having been initiated by a caller dialing a three digit prefix together with a called party number;

    wherein said three digit prefix indicates that one of the parties involved in said telephone call activity is hearing or speech impaired;

    the switching network coupled to an originating telephone call location and a destination telephone call location;

    a first database means coupled to the switching network for analyzing origination and destination information associated with the telephone call activity so as to retrieve a profile of the hearing or speech impaired person involved in said telephone call activity;

    a signaling network coupling the switching network with the first database means for transmitting the origination and destination information from said switching network to said first database means, and for transmitting said profile from said database means to said switching network;

    an adjunct coupled to the switching network for controlling routing of the telephone call activity in the system;

    a first interface for routing the telephone call activity, including said profile, from the switching network to the adjunct in response to the dialing of said three digit prefix by said caller; and

    a relay center operably connected to the adjunct for servicing said telephone call activity when a hearing or speech impaired person is involved.

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