Yeah, the linksys Vonage box has a built-in router. you don't NEED the d-link router, you can replace it with the linksys box. If you just /have/ to keep the dlink router, you can attach the linksys Vonage box to the d-link router using a normal network cable, on the vonage side, attach the cable to the "UPLINK" port. On the dlink box, just attach the other end of that same cable to any open network port.