Method and apparatus for multiplexing telephone lines over a com

Details Method and apparatus for multiplexing telephone lines over a com Method and apparatus for multiplexing telephone lines over a com

1997-10-09

2000-10-10

Nguyen, Chau

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

379 9301, H04L 1228, H04M 1100

Patent

active

061308935

ABSTRACT:
The present invention enables multiple analog telephones to communicate over a two-wire line via the Asymmetric Digital Subscriber Line (ADSL) standard. The analog signal from a standard analog telephone appliance is converted in a terminal adapter associated with the telephone to digital data packets and transmitted over the telephone lines to a central office (CO) using the ADSL standard. Plain Old Telephone System (POTS) frequencies are separated from digital data frequencies by a filter and passed to each terminal adapter on a separate line. On a power-off condition, the terminal adapter connects the telephone to this line. The present invention enables the user to add additional lines without additional wiring into the premises.

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