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Wireless prepaid telephone system with dispensable instruments

  • US 6,473,610 B1
  • Filed: 10/27/1999
  • Issued: 10/29/2002
  • Est. Priority Date: 06/19/1997
  • Status: Expired due to Fees
First Claim
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1. A system for wireless telephonic communication between telephone terminals through a public switched telephone network, comprising:

  • a plurality of discardable, keyless, wireless telephone instruments including a transceiver, an instrument control unit, an earphone output and an input structure consisting of a microphone unit for converting voice sound to representative audio signals;

    a central station that stores prepaid balances of the wireless telephone instruments;

    a wireless platform located at the central station to communicate with the wireless telephone instruments;

    a central control unit located at the central station;

    a voice generator and a voice recognition unit controlled to sequence vocal prompts provided from the voice generator to the earphone output and number signals provided from the input structure of a discardable keyless, wireless telephone instrument to the voice recognition unit to accomplish a dial-up called number for one of the telephone terminals for use by a switched telephone network.

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