|You have noise on your Phone line. Have you hooked up all of the filters that came with your modem to the phones in the house? (NOT THE MODEM of course) How old is your house? You may want to try moving your modem to one of the newest phone jacks you have in the house because the jack it is on may be bad.|
You may want to call your DSL tech support. They can remote into your modem and see if there are any Uncanceled Echos and have you go around the house and disconnect each phone until they determine which jack is causing the noise on the line.