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Communication system

  • US 5,949,855 A
  • Filed: 11/20/1996
  • Issued: 09/07/1999
  • Est. Priority Date: 10/16/1993
  • Status: Expired due to Fees
First Claim
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1. A communication system comprising:

  • a terminal unit;

    a communications network coupled to the terminal unit and having a switching point having only a normal telephone function of switching through telephone connections; and

    a service device, which is a terminal unit for the switching point, and which is coupled to the switching point of said communications network on a one-to-one basis without modification of the communications network, said service device including a switching center, a controller and a data bank, the data bank including at least one service logical program for rendering a service;

    said first-recited terminal unit being adapted to generate a first parameter and a second parameter which are sent as a single transmission to said service device; and

    said controller being adapted to (i) in response to the first parameter, select from the data bank a service logical program which is relevant to the first parameter, and (ii) in response to the second parameter, control the switching center in accordance with the selected service logical program as applied to the second parameter.

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