i do not have a filter on my modem or from the phone jack
That's probably your problem then.
Your digital internet signal and analog phone signal come through the same cord, so in order to keep the phone signal from interfering with your internet signal, there has to be a DSL filter in-between your phone jack and your modem. Some should have come with the DSL modem, so check and see if you have any. If you don't, I don't think they're very expensive.
You also could use filters for each of your phones, because otherwise you will hear faint beeping (the digital internet signal) while you're talking to somebody. That's not necessary for them to work, though.