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Method and system for conveying multiple calls on a single telephone line

  • US 6,324,167 B1
  • Filed: 02/23/1999
  • Issued: 11/27/2001
  • Est. Priority Date: 02/23/1999
  • Status: Expired due to Term
First Claim
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1. A method of implementing a plurality of communication channels on a single twisted pair telephone connection comprising the steps of:

  • interfacing a first communication device with said telephone connection, said first communication device configured to communicate over said telephone connection on a first channel defined by a first frequency band;

    interfacing a second communication device with said telephone connection, said second communication device configured to communicate with said telephone connection on a second channel said step of interfacing comprising monitoring the signal power of a second frequency band above said first frequency band and, if the detected signal power is below a predetermined level, then assigning said second channel to said second frequency band, else monitoring the signal power of a third frequency band above said first and second frequency bands and, if the detected signal power is below a predetermined level, then assigning said second channel to said third frequency band; and

    interfacing a third communication device with said telephone connection, said third communication device configured to communicate with said telephone connection on a third channel, wherein said first, second, and third communication channels each reside in separate predetermined frequency bands.

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