I have DSL internet service with my home phone and for some unknown reason the phone is not working while I am using the internet which has never happened before and I don't know whether something is wrong with the internet or the phone or the filters. I can't seem to identify the problem. Any one have any ideas as to what I should do or who I should call? Since I can't figure out if the problem is within my home phone or the internet who should I call DSL people or phone people? The weird thing is that once I unplug the DSL and is not using the internet, the phone is will work, but once i'm using the internet the phone will not work....please help..