Method and apparatus for inclusive echo canceller testing

Method and apparatus for incremental load simulation

Method and apparatus for insertion loss estimation in...

Method and apparatus for intra-bundle signaling

Method and apparatus for mapping the terminations of large...

Method and apparatus for measurement of service disruption...

Method and apparatus for measuring communication market...

Method and apparatus for measuring electrical properties of...

Method and apparatus for monitoring selected telecommunications

Method and apparatus for monitoring status of speech connection

Method and apparatus for monitoring telecommunication signals

Method and apparatus for monitoring the operation of telecommuni

Method and apparatus for obtaining feedback regarding data netwo

Method and apparatus for obtaining feedback regarding network se

Method and apparatus for obtaining telephone status over a...

Method and apparatus for on-line monitoring of...

Method and apparatus for performing either tone analysis on...

Method and apparatus for performing impedance measurements on a

Method and apparatus for performing transmission line testing

Method and apparatus for polling telephony line status in an...