An ADSL microfilter is used to separate the phone line connection from the internet connection. ADSL Microfilter. 1x BT Plug - 1x BT Socket / 1x ADSL Socket. Leaded Adapter.
ADSL Microfilter BT Sky Micro Filter RJ11 Modem Telephone Broadband
ADSL/ADSL2+ Microfilter Internet Broadband Micro Filter Splitter With Cable Lead
ADSL MicrofilteLeaded Adapter Broadband Micro Filter microfilter bt telephone
ADSL Microfilter RJ‑11/BT Female to BT Male | Modem Telephone Broadband Splitter
