Method and circuit arrangement for determining the quality of vi
Method and data structure for the control of switching centers i
Method and device for a debugger and test data collector
Method and device for detecting path faults in a network
Method and device for identifying a specific patch cord...
Method and device for improving voice quality on transparent...
Method and device for measuring operation parameters of telephon
Method and device for measuring the quality of a network for...
Method and device for quality evaluation of an audio signal...
Method and devices for monitoring subscribers of a...
Method and equipment for intercepting telephone calls
Method and means for remote testing of unused telephone lines
Method and structure for diagnosing problems on a DSL device
Method and system for administering subjective listening...
Method and system for automatically monitoring the performance q
Method and system for automatically monitoring the performance q
Method and system for automatically monitoring the performance q
Method and system for automatically verifying provisioning of te
Method and system for automatically verifying provisioning...
Method and system for calculating the estimated time of...