Second to ADSL's amazing speed is the ability use your telephone at the same time as being on the internet. As a result all devices connected to your phone line need to be filtered. This applies even if you do not use the device.
We sell the EM1550 filter, which is a higher performing filter rated for ADSL2+ speeds up to 24Mbps. The EM1550 is one of a limited number of RCIT.0004 Telstra Approved filters.
It is important to note that devices like burglar alarms which are hard wired into the phone line, require an Austel approved cabler to install a central filter.
Full EM1550 Product Specifications for your information.