I may be in the market for a pair of those devices that let you place a remote phone jack wherever you have an AC outlet. You know... one goes by an existing phone jack, then you put the other one where you need a phone jack, and the devices use the power line to carry the phone signal. They are often used with older TiVo units to provide modem connectivity. My question? I can't come up with a sufficiently succinct search phrase to look for these online! What is the specific generic name for these? Or more importantly, what are the descriptive terms used by eBayers and other online sellers of these? Thanks!!