It is not a distributor but a simple splitter: 3,4,5,6 RJ45 -> RJ11 1,2,3,4 For a real dispatcher 4 RJ45 to RJ11 2.3 pairs See "telephone distributor Belkin RJ45 / RJ11 4-way"
I thought I would buy this accessory to connect a telephone central monitoring but having given up in view of the need for a subscription to a monitoring center .L'objet I am therefore of no use.