These ZyXEL ADSL Filters have been specifically designed for use with higher bandwidth lines, especially If your ADSL Line is 2MB or above.
Micro filter or ADSL Filter, seperates your analogue telephone service from the data signals used by your broadband service, allowing you to use both simultaneously without cross contamination. It will help maximise the quality of your voice telephone calls.
This ADSL filter meets all SIN346 requirements including "longitudinal balance" test. Manufactured to exceed the BT SIN 346 v2.2 guidelines for UK micro filters. They offer complete compatibility with BT services such as CLI (Caller ID). Manufactured for maximum compatibility with even the most complex telephone equipment. Fully compatible with DECT cordless phones and PABX systems.