Method and apparatus for multiplexing telephone lines over a common access network
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United States of America Patent
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-
Oct 10, 2000
Grant Date -
N/A
app pub date -
Oct 9, 1997
filing date -
Oct 9, 1997
priority date (Note) -
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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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