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System and method for providing an on-line directory service

  • US 5,850,433 A
  • Filed: 05/01/1996
  • Issued: 12/15/1998
  • Est. Priority Date: 05/01/1996
  • Status: Expired due to Term
First Claim
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1. A system for providing an on-line electronic directory service to a user at a personal computer and for automatically placing a telephone call to a remote telephone device in response to a call request originating at the personal computer, said personal computer running a web browser application configured to receive web pages from a remote server, to present said web pages to said user and to navigate among web pages by sending navigational commands to said remote server, said system comprising:

  • a terminal server interconnected to said personal computer over a first communications line and communicating with the web browser via a data link over said first communications line;

    a database server coupled with said terminal server and providing access to data residing in an associated database, said database containing directory listings, at least some of said directory listings including advertising information,said database server receiving a first directory search request from said personal computer and responsively searching said database for a directory listing meeting said first directory search request, and said database server providing to said web browser a web page bearing a directory listing, said directory listing corresponding to a telephone number of said remote telephone device;

    a telephony server coupled with said database server and communicating with the remote telephone device by establishing a voice link over a second communications line upon receiving the call request, said telephony server further integrating the data link and the voice link by a process comprising transcoding between low bit rate encoded voice signals and pulse code modulation signals, so that a voice connection is established between the personal computer and the remote telephone device while said terminal server is interconnected to said personal computer,whereby, through said web browser, said user may search said database for a desired directory listing, said user may send a call request indicating a desire to establish said voice connection with said remote telephone device, and, in response to said call request, said telephony server may establish said voice connection.

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