Thanks Yastiandrie
But i don't think its a central filter. Its just the normal in-lin filter that was hanging outside the wall socket. When the telstra guy came over, he said he would put it inside the wall if i'm not using my phone.
Will that filter cause a problem with fttn.
I have a second telephone line. I tried plugging my modem into that wall socket and got no internet. I then attached a in-line filter/splitter, plugged the modem into the ADSL port and the other end into the wall. I then got internet from the second port in another room, but had to use the filter.
Does that mean I have a central filter?