APPARATUS AND METHOD FOR TESTING A TELECOMMUNICATIONS SYSTEM

摘要

A method of testing a telecommunications line by using the following method. Applying a first AC test signal to a communications line (7) by tone generat or (23) having a first frequency and then measuring the response to the first test signal. Applying a second AC test signal to the same communications lin e (7) with a different frequency and measuring the response. Calculating one o r more line parameters based on the two measured responses.