I ordered an RJ-11 cable for my DSL modem from Ucable.(#28721) This cable is designed to reject interference from various outside sources. The first one they sent me was just a standard RJ45 network connector which of course would not fit into my telephone jack. They have just sent my replacement which is just a standard telephone cable I could get from my local Radio Shack. Buyer BEWARE with this company!!!!! Their employees apparenetly can't even read product codes before shipping!!! I will pay the extra $2.00 and order the cable I wanted long ago from the original manufacture (Cables to Go) a great company. Shame on me for trying to save a few bucks, order from Amazon and not from the people who make the damn thing.