Telecommunication system, method and subscriber unit for use therein
First Claim
1. A subscriber interface unit for use in a telecommunication system including a digital switch, a local loop coupling the digital switch to a subscriber location, wherein a segment of the local loop includes copper twisted pair and wherein an asymmetrical digital subscriber line is carried by the local loop, the asymmetrical digital subscriber line including a plurality of derived digital telephone lines, the subscriber interface unit for coupling the asymmetrical digital subscriber line to an analog land-line telephone, the subscriber interface unit comprising:
- a housing;
an electrical coupler, coupled to the housing for connection to a cable carrying the asymmetrical digital subscriber line;
a telephone jack, coupled to the housing, for connection to a cable of the analog telephone;
a converter, coupled to the electrical coupler and to the telephone jack, for converting the first analog signals generated by the analog telephone into a first plurality of data packets for transmission to a selected one of the plurality of derived digital telephone lines and for converting a second plurality of data packets received from the selected one of the plurality of derived digital telephone lines into a second analog signal for transmission to the analog telephone; and
a smart card interface unit positioned in the housing, the smart card interface unit configured to receive a smart card defining an address for the subscriber interface unit.
3 Assignments
0 Petitions
Accused Products
Abstract
A telecommunication system includes a digital switch, a local loop coupling the digital switch to a subscriber location, wherein a segment of the local loop includes copper twisted pair and wherein an asymmetrical digital subscriber line is carried by the local loop, the asymmetrical digital subscriber line including a plurality of data packets capable of carrying a plurality of derived digital telephone lines. The telecommunication system further includes a subscriber unit coupled to the asymmetrical digital subscriber line. The subscriber unit monitors the content of at least one of the plurality of data packets, receives an off-hook signal in response to an action of a user, and initiates a first derived digital telephone line of the plurality of derived digital telephone lines in response to the off-hook signal.
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Citations
20 Claims
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1. A subscriber interface unit for use in a telecommunication system including a digital switch, a local loop coupling the digital switch to a subscriber location, wherein a segment of the local loop includes copper twisted pair and wherein an asymmetrical digital subscriber line is carried by the local loop, the asymmetrical digital subscriber line including a plurality of derived digital telephone lines, the subscriber interface unit for coupling the asymmetrical digital subscriber line to an analog land-line telephone, the subscriber interface unit comprising:
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a housing; an electrical coupler, coupled to the housing for connection to a cable carrying the asymmetrical digital subscriber line; a telephone jack, coupled to the housing, for connection to a cable of the analog telephone; a converter, coupled to the electrical coupler and to the telephone jack, for converting the first analog signals generated by the analog telephone into a first plurality of data packets for transmission to a selected one of the plurality of derived digital telephone lines and for converting a second plurality of data packets received from the selected one of the plurality of derived digital telephone lines into a second analog signal for transmission to the analog telephone; and a smart card interface unit positioned in the housing, the smart card interface unit configured to receive a smart card defining an address for the subscriber interface unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A subscriber interface unit for use in a telecommunication system including a digital switch, a local loop coupling the digital switch to a subscriber location, wherein a segment of the local loop includes copper twisted pair and wherein an asymmetrical digital subscriber line is carried by the local loop, the asymmetrical digital subscriber line including a plurality of derived digital telephone lines, the subscriber interface unit for coupling the asymmetrical digital subscriber line to an analog land-line telephone, the subscriber interface unit comprising:
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a housing containing a processor; an electrical coupler, coupled to the housing for connection to a cable carrying the asymmetrical digital subscriber line; a telephone jack, coupled to the housing, for connection to a cable of the analog telephone; and software code stored in a computer readable medium in the subscriber interface unit, the software code comprising instructions for execution by the processor of the following steps; converting the first analog signals generated by the analog telephone into a first plurality of data packets for transmission to a selected one of the plurality of derived digital telephone lines; converting a second plurality of data packets received from the selected one of the plurality of derived digital telephone lines into a second analog signal for transmission to the analog telephone; and downloading a plurality of smart card data via a smart card interface unit positioned in the housing and reconfiguring an address of the subscriber interface unit based on the plurality of smart card data. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification