Hmm, is the phone getting any dial tone on the line that the modem is plugged into? One way to test to see if filters are causing an issue is to unplug everything from the phone lines, then just plugging the modem in and seeing if that helps. If there is no difference then it is not your equipment and is the ISP's infrastructure. It's always good to eliminate your equipment as the cause because if a service guy/girl comes out to fix the infrastructure and finds it is your equipment they'll charge a hefty fee, which is never good Your very welcome, I used to work in Internet Tech support :) Having taken so much information off this site it feels good to be inputting some of my own back into it :D