joker97:joker97: can i ask - how do i know if there is already a master filter? i just checked my modem down attentuation modem says 20dB. if only one phone jack can have broadband is that the sign of a master filter?
does a master filter allow phone line to be connected to that broadband jack? the jack that gives me broadband also allows a phone line to be connected ... not a master filter is it?
No, You will have a separate Jack for the Broadband and another for the Phone if you have a xDSL splitter installed.