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Wireless prepaid telephone system with dispensable instruments

  • US 6,049,710 A
  • Filed: 06/19/1997
  • Issued: 04/11/2000
  • Est. Priority Date: 06/19/1997
  • Status: Expired due to Fees
First Claim
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1. A wireless telephone instrument for prepaid use with an approving central station to communicate with remote stations through a public switched telephone network, consisting of:

  • a housing defining an interior space;

    an earphone fixed to said housing for providing voice sounds from audio signals;

    a microphone fixed to said housing for providing audio signals representative of voice sounds;

    a power supply;

    a switch coupled to said power supply to energize said instrument;

    a transceiver fixed to said housing and connected to said earphone and said microphone for wireless communication with said approving central station and selected ones of said remote stations; and

    a control unit fixed to said housing and including a memory for storing data on said wireless telephone instrument including identification data, said control unit operating with said transceiver to transmit identification data from said memory to said approving central station upon said instrument being energized, then subsequently to receive prompting signals from the transceiver for the earphone to prompt for spoken numbers to the microphone for dialing a select remote station to attain a connection through the public switched telephone network to the select remote station.

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