A multi-unit test system performs automated and dynamically alterable, double-ended testing of telephone lines, whose service is provided on copper cable pairs. A prescribed set of (e.g., twelve) individual tests are executed either from a hand-held measurement unit, or by a central office-resident direct...http://www.google.fr/patents/US7149285?utm_source=gb-gplus-shareBrevet US7149285 - Dynamic, automated double-ended system and method for testing and qualifying metallic telecommunication loops
Dynamic, automated double-ended system and method for testing and qualifying ...