System and method for the powering and fault protection of...

System and method for transferring echo cancellation data

System and methods for modem interface

System for bidirectional digital transmission with echo cancella

System for powering a switch over data communication cabling...

System for protecting telecommunications equipment from...

System for providing pots splitters externally with respect...

System for providing universal cross-connect connectivity in...

System for reducing distortion in a line powered modulator

System identification method and apparatus by adaptive filter

System including an alternate power source for a...

Systems and methods for interfacing telephony devices with...

Systems and methods for managing digital subscriber line...

Systems and methods for passing through alternative network...

Systems and methods for providing application services