Patent ID: 7680255
Filing Date: 2010-03-16
Classification: H04M

Abstract:
1. A device for coupling an analog telephone device to digitized and packetized telephone data with a supporting life-line function, for use with a single wire pair at least in part in a wall within a building, the wire pair concurrently carrying a first analog telephone signal frequency multiplexed with a digital data signal containing the digitized and packetized telephone data, the digital data signal being carried in a digital data signal frequency band distinct from, and higher than, an analog signal frequency band in which the first analog telephone signal is carried, said device comprising: a wiring connector connectable to the wire pair; a high pass filter coupled to said wiring connector for passing only the digital data signal; a modem coupled to said high pass filter for conducting said digital data signal over said single telephone wire pair; an adapter coupled to said modem and operative to effect a conversion between the digitized and packetized telephone data and a second analog telephone signal; a low pass filter coupled to said wiring connector for passing only the first analog telephone signal; a telephone connector connectable to the analog telephone device for coupling an analog telephone signal to the analog telephone device; a switch having first, second, third and control ports, said switch having life-line and normal states wherein in the life-line state said switch is operative to only pass a signal between said first and second switch ports, and in the normal state said switch is operative to only pass a signal between said first and third switch ports, the switch state being controlled by a signal at said control port, said first switch port being coupled to said telephone connector, said second switch port being coupled to said low pass filter, and said third switch port being coupled to said adapter; and a single enclosure containing said wiring connector, said high pass filter, said modem, said adapter, said low pass filter, said telephone connector and said switch, wherein the digitized and packetized telephone data is based on Voice over Internet Protocol, and said enclosure is attachable to a wall.