All of my phone jacks are now dead. I've had three guys out to get the system in it's current condition, but I think it has been installed improperly. There appeared to be no effort to connect the new modem to the phone wiring in the house. The first two guys just moved the phone to where there was internet service, and plugged the phone in. The problem I had was that I also had a printer that needed a phone interface. The last guy put a duplex jack on the wire from the modem, and plugged the phone into one and the printer into the other. It works, but if I ever want the phone or printer in another room, I'm stuck with calling Cox to get it done. I asked the last installer why they didn't just put the modem outside where the phone was interfaced with the old system. He said that was supposed to be the way it was to be installed, but he ;couldn't find the wire. I think the first guy just cut it off so short that he couldn't see it. All, in all, a really bad job.