I want to connect both my ADSL modem (zoom 5510 usb) and my dial up modem to the same phone extension socket however when i try to connect the dial up modem through the adsl filter it can't get a dialing tone from either side of the splitter/filter Can i run them both direct to the phone socket with just the phone connected to the filter? Im currently waiting to get my line activated for adsl with metronet and iv'e got everything set up including the filters. Is it ok to use the dial up modem "unfiltered" on the same line as the adsl modem? Im new to broadband and just need some advice