Filtered Faceplate's, such as BT's plug and play iPlate device, are generally used as a replacement for the removable front cover (faceplate) of BT phone line extension boxes. These are the boxes that typically rest on your skirting board, at floor level; where you plug your phone line in.

Most such devices are designed for use with DSL (e.g. ADSL) style broadband services and fit in with BT's NTE-5 master telephone socket. They are used to filter out a lot of line interference, which can cause broadband connection and performance problems, thus giving you a faster and more reliable service.

Be aware that not all BT sockets are NTE-5 and may require a unique and more complicated adapter installation to get the most out of your line. Unless the socket is NTE-5 then we would not recommend installing a faceplate without first possessing a good deal of previous electrical/wiring knowledge.

These faceplates are not to be confused with Microfilters / Splitters as they do a lot more than merely split the line.