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Personal phone expansion system

  • US 5,528,666 A
  • Filed: 07/01/1994
  • Issued: 06/18/1996
  • Est. Priority Date: 07/01/1994
  • Status: Expired due to Term
First Claim
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1. A personal base station for routing an analog call originating from a means for sending an analog call communicatively coupled with the personal base station, and further for routing a modulated call originating from any one of a plurality of portable units communicatively coupled with the personal base station, the personal base station comprising:

  • a codec, coupled with the means for sending an analog call, for receiving the analog call, digitizing the analog call to create a digitized analog call, and forwarding the digitized analog call;

    a wireless interface for receiving the modulated call, digitizing the modulated call to create a digitized modulated call, and forwarding the digitized modulated call;

    a digital voice messaging system; and

    a digital routing and switching circuit, coupled with the digital voice messaging system, the codec, and the wireless interface, for receiving the digitized analog call from the codec and routing the digitized analog call to the digital voice messaging system or the wireless interface, and further for receiving the digitized modulated call from the wireless interface and routing the digitized modulated call to the digital voice messaging system or the codec;

    wherein the digital voice messaging system for receiving the digitized analog call and the digitized modulated call from the digital routing and switching circuit, storing the digitized analog call and the digitized modulated call as digitized messages, and forwarding the digitized messages;

    wherein the digital routing and switching circuit further for receiving the digitized messages from the digital voice messaging system and routing the digitized messages to the codec or the wireless interface, and further for routing the digitized modulated call received from the wireless interface back to the wireless interface for transmission to any one of the plurality of portable units except the portable unit that originated the modulated call.

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