I am using wireless connection on broadband and have just bought a new telephone. The reception is really bad and can't use internet when phone is plugged in. ON checking phone instructions it seems that I need to buy a microfilter to help with the reception problem. My problem is that when I asked in a store about microfilter it seems that I have to plug the pc and telephoen into the filter but I have a wireless connection - I switch on the pc at top of house and phone at bottom. So if I buy a microfilter can I just plug the telephone into it and will it make a difference to the reception.