Hello. I have a dual function modem for both internet and internet phone service. The problem is that the modem is all the way across the house and the wiring in the walls is a little too old for the powerline adapters to process the signals fully. I was wondering, if I use a straight RJ11 to RJ45 cord from the phone jack on this side of the house and plug the ethernet side into say my computer, would I be able to receive internet signal that way?