One aspect of the invention relates to a method for line matching of
analog communication lines in telecommunications networks, whereby signal
processor(s) and/or programmable digital filters are used. Coefficients
of the line transmission function are calculated by an echo compensator
to be compared with pre-specified filter coefficients in a filter device
assigned to the line, in which case, an incorrect line matching is
identified and a new set of filter coefficients is generated, which is
fed into the filter device. In this case, the first values to be accepted
and processed for the coefficients of the line transmission function
calculated by the echo compensator and used for comparison, are those
that are determined by an echo compensator for a first line gateway in a
line path, which is associated with the reflection with the shortest
delay time. In networks with high dispersion of the line parameters, the
invention re-establishes the task distribution between line matching and
echo compensator.