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Telephone outlet with packet telephony adaptor, and a network using same

  • US 8,472,593 B2
  • Filed: 01/12/2010
  • Issued: 06/25/2013
  • Est. Priority Date: 07/05/2001
  • Status: Expired due to Fees
First Claim
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1. A device for coupling one or more telephone sets in a building to multiple digitized voice channels, for use with a telephone wiring comprising two or four wires and being part of a local loop connecting the building to an exchange of a Public Switched Telephone Network (PSTN), the telephone wiring being connected to carry a first full-duplex serial digital data signal, the first full-duplex digital data carrying time-domain multiplexed first and second digitized telephone channels, said device comprising:

  • a first connector for connecting to the telephone wiring;

    a first transceiver coupled to said first connector for transmitting the first serial digital data signal to, and for receiving the first serial digital data signal from, the telephone wiring;

    a LAN connector for connecting to a Local Area Network (LAN) wiring comprising one or more twisted-pairs and connected to carry a second full-duplex serial digital data signal;

    a LAN transceiver coupled to said LAN connector, and for transmitting the second serial digital data signal to, and for receiving the second serial digital data signal from, the LAN wiring;

    a port for connecting to a telephone set;

    a packet switch or router coupled for routing packet-based digital data between said first transceiver, said LAN transceiver and said port for passing digital data between said port, said telephone wiring and said LAN wiring; and

    a single enclosure housing said first connector, said first transceiver, said LAN connector, said LAN transceiver, said port and said switch or router;

    wherein in a first state of said device, only the first digitized voice channel is passed between said telephone wiring and said port for coupling said telephone set to said first digitized voice channel, and in a second state of said device, only the second digitized voice channel is passed between said telephone wiring and said port for coupling said telephone set to said second digitized voice channel.

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