Telecommunication system, method and subscriber unit for use therein

US7187686B1 · kind B1 · utility

Assignee

• SBC Properties, B.P. · US

Inventors

• Wilbur J. Walkoe · Brookings, US
• James Barber · Oldwick, US
• Michael George Gorman · Cambridge, GB
• Robert Wesley Bossemeyer, Jr. · McLeansboro, US
• Michael Steven Pickard · Highland Park, US
• Denise Violetta Kagan · Riverwoods, US
• Scott Christopher Goering · Naperville, US
• Bruce Edward Stuckman · Algonquin, US
• Michael Tisiker · Westland, US
• Jeffrey Neumann · Evansville, US
• David Orwick · Crystal Lake, US

Key dates

• Filing date: Mar 17, 2000
• Grant date: Mar 6, 2007
• Expiry date: Mar 17, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L12/66
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

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.A telephone communication system including an analog telephone providing a plain old telephone service (POTS) analog voice channel on a subscriber loop with a digital data line sharing the same subscriber loop. In addition to the analog voice line, the digital data line provides an additional digital voice channel for placing telephone voice calls.