Method and apparatus for determining properties of a...

Method and apparatus for determining the value of analog voltage

Method and apparatus for determining whether the advance...

Method and apparatus for determining whether the immediate...

Method and apparatus for digital subscriber loop qualification

Method and apparatus for digitally controlling gain in a talking

Method and apparatus for dispatching services

Method and apparatus for echo canceling accounting for compandin

Method and apparatus for emulating telephone services

Method and apparatus for estimating quality in a telephonic...

Method and apparatus for fault segmentation in a telephone netwo

Method and apparatus for fault segmentation in a telephone netwo

Method and apparatus for fault tolerant call processing

Method and apparatus for generating an audible tone in DSL...

Method and apparatus for gradual application of a hitless...

Method and apparatus for gradual application of a hitless...

Method and apparatus for high impedance ringer detection

Method and apparatus for improving telecommunications system per

Method and apparatus for inband testing of an echo canceller

Method and apparatus for inclusive echo canceller testing