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Car phone connected to a vehicle audio unit having visual indication

  • US 5,724,663 A
  • Filed: 08/16/1995
  • Issued: 03/03/1998
  • Est. Priority Date: 08/16/1994
  • Status: Expired due to Fees
First Claim
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1. A method of operating a telephone device having a plurality of telephone jacks, connectable with an audio unit, a plurality of speakers, and a plurality of microphones, all located in a vehicle, comprising the steps:

  • connecting the telephone device with the audio unit;

    connecting the plurality of telephone lacks with the plurality of speakers and microphones;

    setting parameters disposed in the telephone device for a telephone operation to be combined with the use of the audio unit to carry out the telephone operation;

    receiving an incoming telephone signal through one of the telephone jacks;

    visually indicating the incoming telephone signal to be received by the telephone device;

    terminating the visual indication and carrying out a conversation operation, if the incoming telephone signal is received by the telephone device;

    waiting a predetermined time and terminating the visual indication, if the incoming telephone signal is not received by the telephone device;

    transmitting an outgoing telephone signal through one of the telephone jacks; and

    selectively activating one of the telephone jacks to carry out the telephone operation.

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