When I have my modem turned on I have a lot of static on the telephone. When I unplug it, it clears up instantly. This has been a problem since we first got the high speed internet modem. I tried all the filters that came with the modem. The static sounds like the static on the line without the use of a filter, just not as bad. The internet works fine. Is there a fix for this? is that a fault in the wiring in my house or is it a modem issue? We just got the house, it has the older telephone wiring colors in it. The red, green and yellow are hooked up, the black is not.