Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2007-03-06
2007-03-06
Kizou, Hassan (Department: 2661)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S352000
Reexamination Certificate
active
09533263
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.
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Barber James Stewart
Bossemeyer, Jr. Robert Wesley
Goering Scott Christopher
Gorman Michael George
Kagan Denise Violetta
Brinks Hofer Gilson & Lione
Kizou Hassan
Pizarro Ricardo
SBC Properties, B.P.
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