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Communication system with operation-procedure guiding function by speech

  • US 4,736,405 A
  • Filed: 01/30/1985
  • Issued: 04/05/1988
  • Est. Priority Date: 02/03/1984
  • Status: Expired due to Term
First Claim
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1. A communication system having an operation-procedure guiding function using speech messages, comprising:

  • (i) a plurality of communication terminal devices each having means for inputting a request signal for a desired service, including the establishment of a call between a calling communication terminal device and a called communication terminal device;

    (ii) a switching system connected to said communication terminal devices and being responsive to a call request signal from a calling communication terminal device for providing a communication connection between said calling communication terminal device and a called communication terminal device, and having first means for identifying the status of the called communication terminal device which has caused the inability to complete the communication connection when a call has failed to be established between the calling communication terminal device and the called communication terminal device, second means for identifying services available to a user at the calling communication terminal device in each call failure situation, third means for storing elemental coded speech signals from which a vocal message may be generated, fourth means responsive to the call failure situation in said switching system for retrieving and editing elemental coded speech signals from said third means to form a first coded message indicating a reason for call failure on the basis of data supplied by said first means and indicating services available to said called communication terminal device on the basis of data supplied by said second means, and a second coded message responsive to signals indicating a selected service received from the calling communication terminal device for guiding the user at said calling communication terminal device in the operation-procedure for a selected service, fifth means synthesizing a coded message into a vocal message, and sixth means for transmitting a speech synthesized vocal message generated by said fifth means to said calling communication terminal device.

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