5-WAY PHONE TELEPHONE LINE JACK PLUG OUTLET SOCKET SPLITTER ADAPTER 4 3 2 1 RJ11 Converts a single phone jack into five jacks Plug in up to five devices such as telephones, fax machines, modems, answering machines, etc. Standard male RJ-11 plug at one end, five standard female RJ-11 jacks at the other end. All four conductors go through to all five jacks. Standard dimensions.