Any one have issues putting pots lines into the 6X and the lines not being within AT&T specs (i.e ring voltage must be greater than 75 volts)? I have installed one with no prob's, the second one was at the end of an AT&T run and the lines were not withing spec's, so had to go to Charter pots lines. Now I think I'm going to have a battle with Charter to get there lines withing spec's (calls dropping, talking over one another and static). If I want to sell an Allworx, I have to take my demo switch onsite to test the lines with the Allworx.