Overview
In order to continue using existing (analogue) telephone devices
you may require some additional ADSL micro filters.
Filters must be installed on each regular phone, answering machine,
cordless phone, fax machine or other phone equipment,
but never on the DSL modem line itself.
One microfilter is normally included with your router
Additional units are available:
http://www.netro.com.au/services/dslhardware/