Resources Contact Us Home
Voice over DSL method and system for supporting a lifeline

Image Number 7 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
Semiconductor device manufacture in which minimum wiring pitch of connecting portion wiring layer is less than minimum wiring pitch of any other wiring layer
System and method for deposition in high aspect ratio magnetic writer heads
Cryptographic key split combiner
Human embryonic stem cell methods and PODXL expression
Eye therapy system
Cucumber plants with a compact growing habit
Interest point detection
  Randomly Featured Patents
Three-dimensional shape measuring device and three-dimensional shape measuring sensor
Liquid droplet ejecting head and liquid droplet ejecting apparatus
Open roof construction for a vehicle
Method of bending a glass sheet to a sharp angle
Steam cracking of hydrotreated and hydrogenated hydrocarbon feeds
Fault detection and correction for single and multiple media players connected to electronic displays, and related devices, methods and systems
Specific dental water pulse capable of being connected to a running water faucet spout
Hypothesized range and depth sonar processing method
Hammock construction with replaceable hammock material and adjustable hanger assembly
Curable composition