Even though I've had adsl since well when it was first available the whole filter thing confuses me.
I am running a master extension upstairs with a built in spliiter/filter like this
right so that is all wired up and the lead plugs straight in to the master phone socket downstairs it only has the one phone socket entry on the faceplate.
Am I supposed to put a filter direct from the master socket in between this one ? or one on the telephone which at the moment is plugged in to the phone socket you get on the adapter plugged in to the master socket.
I am running a master extension upstairs with a built in spliiter/filter like this

Am I supposed to put a filter direct from the master socket in between this one ? or one on the telephone which at the moment is plugged in to the phone socket you get on the adapter plugged in to the master socket.