A method for providing spectral containment over telecommunications
service lines is provided. The method includes selecting a filter having
spectral characteristics corresponding to a predetermined passband. The
method also includes connecting the filter in series to at least one loop
used to provide at least one telecommunications service to a customer.
The method further includes activating service over the at least one
loop. The filter attenuates signals transmitted on frequencies outside of
the predetermined passband over the at least one loop.