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AssigneeNortel Networks Limited
InventorsRichard Jonathan Whittaker, Jim Orlando
Estimating the term…
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.
A method for adding a telephone line to an existing premise using a digital transmission medium and using an analog telephone handset, comprising:
A terminal adapter for connecting an analog telephone handset to a digital transmission medium and for assisting in creating a new telephone line, comprising:
The terminal adapter of 9 wherein said control means comprises:
Dependencies are inferred from the claim text.