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Incoming call tracking with interactive data collection

  • US 5,896,445 A
  • Filed: 03/27/1996
  • Issued: 04/20/1999
  • Est. Priority Date: 01/23/1996
  • Status: Expired due to Term
First Claim
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1. In a public switched telephone network comprising a plurality of subscriber telephone lines, each coupled to an associated telephone switching facility, each subscriber telephone line having at least one directory number, a method for processing an incoming telephone call placed to a predetermined directory number comprising the steps of:

  • detecting, at a switching facility associated with said predetermined directory number, a call having said predetermined directory number telephone line as its destination;

    identifying the directory number of the line originating the detected call;

    determining whether a call has previously been completed to the predetermined number destination from said originating line; and

    subsequent to said determining step, completing the call through said switching facility to said destination.

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