British Telecommunications Public Limited Company

Christopher Byron Hatch

Stephen Beaumont

Stephen Charles Beaumont

The performance of a test apparatus for a communications network may be inferred by analyzing a set of performance data results measured on a number of different lines in the network. Once a sample of sufficient size for a particular test apparatus has been created then it is possible to infer the performance of the test apparatus based on the ratio of passes to fails recorded.

Measurement method

The present invention provides a method of testing a transmission line from a copper access network. The transmission line is tested to generate values for a plurality of network parameters. Using previously determined test results, it is possible to calculate an estimate of the length of the transmission line based on the values of each of the measured parameters. These estimates of the transmission line length can then be used to compute a weighted average of the transmission line length. An inference of the condition of the transmission line can be made by comparing the estimates of the length of the transmission line with the weighted average length.

Growing community of inventors

London, United Kingdom

Christopher Byron Hatch