- Question
Why do I need microfilters and where do they go?
- Answer
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A microfilter is a device that allows broadband to work at the same time as your telephone service. Without microfilters you may experience problems with your BT Broadband and telephone line.
You need a microfilter for every telephone socket in your home that has equipment plugged in. Equipment that needs to be plugged into microfilter includes:
- Broadband modem or router
- Telephones
- Answering machines
- Digital TV boxes (for example, BT Vision, Sky)
- Fax machines
- Alarm systems
You can use a maximum of four microfilters to a single telephone line.
You don't need microfilters if your master socket has a broadband accelerator faceplate or if you've got fibre broadband, like BT Infinity.
Plugging in your microfilters
At each phone socket where a device plugs in:
- Unplug the device from the socket
- Plug a microfilter into the socket
- Plug the device you have just unplugged into the microfilter's phone socket, and plug your broadband equipment into the computer's socket.
View our video
Extension leads
If you need to use an extension lead, make sure that it's no longer than 10 metres as this may affect your line stability and speed.
There are two ways to connect your extension lead:
- If you need an extension lead for your Home Hub or router:
- If you need an extension lead for your telephone only:
Socket doublers
If you use a socket doubler to connect more than one phone to a single socket plug the microfilter into the telephone socket first, and then plug the socket doubler into the phone socket of the microfilter.
You'll get two microfilters with your BT Home Hub. To order more microfilters from BT, go towww.bt.com/shop.
- View Answer at http://bt.custhelp.com/app/answers/detail/a_id/635/c/346,407,408
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