Method and apparatus for detecting line card threshold

Method and apparatus for detecting speech at a near-end of a com

Method and apparatus for determining the deviation of longitudin

Method and apparatus for dynamically matching impedance

Method and apparatus for echo canceler disablement

Method and apparatus for echo canceling in a communication syste

Method and apparatus for echo compensator connection for telepho

Method and apparatus for echo removal in a communication system

Method and apparatus for enabling multiple protocol...

Method and apparatus for feeding power to a telephone line such

Method and apparatus for improved control and time sharing of an

Method and apparatus for interfacing analog telephone...

Method and apparatus for isolation in a data access...

Method and apparatus for maintaining audio sample correlation

Method and apparatus for minimizing the telephony ring...

Method and apparatus for monitoring subscriber loop...

Method and apparatus for phantom battery feed

Method and apparatus for providing a ground reference for teleph

Method and apparatus for providing service to VODSL derived...

Method and apparatus for reducing distortion in a line...