I am in the process of changing my phone and internet from Frontier to Comcast (Internet and Voice only). My understanding is the phone jacks in my home will be dead when I cancel my current service. I like to have my receivers hooked up to a phone line even though this is no longer absolutely required. Some details....My house is three levels with one TV/Box on the top and bottom, cable signal comes into the home only on one jack, located on the middle level (due to DTV installer moving lines under my home so jacks on top and bottom floor have the DTV signal). The modem and wireless router will be on the middle floor. Is there a simple way to get a phone signal to the boxes on the top and bottom floor?