Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Voice over DSL method and system for supporting a lifeline










Image Number 4 for United States Patent #6574313.

The present invention relates to a system and method for providing a "lifeline" service to a VoDSL customer despite an electrical power outage or integrated access device failure at the customer premise. A bypass function is implemented in an integrated access device at the customer premise to provide the lifeline service. The bypass function is preferably a relay, which can be automatically activated to provide the lifeline service under various conditions. The bypass relay, working in conjunction with systems in the central office and the regional switching center allows the customer to obtain an active telephone line during power outages or integrated access device failures. Electrical power is also supplied to the customer's premise from the central office, thereby allowing the customer to use a telephone line in the traditional manner. The present invention can further be implemented for any number of customers and telephone lines.








 
 
  Recently Added Patents
Cooling structure and cooling method for control rod drive mechanism and nuclear reactor
Managing device functionality during predetermined conditions
Detachably integrated battery charger for mobile cell phones and like devices
Multilayered material sheet and process for its preparation
Device and method for processing input data of protective relay
Controller for internal combustion engine
Plural component proportioner
  Randomly Featured Patents
Process for copolymerizing ethylene, vinyl acetate and carbon monoxide to provide copolymers of reduced melt flow rate
Armchair
Cryoprobe
Ink jet recording head and ink jet recording apparatus comprising the same
Matching circuit for adaptive impedance matching in radio
Sample inspection apparatus
Method and apparatus for cleansing the internal rollers of a computer pointer device
Thermoelectric cooling device and gas analyzer
Compounds useful for the treatment of hypoglycemia
Transmission circuit for an electronic telephone set