Wiring cat diagram phone telephone jack cable cat5 rj11 color code rj wire chart socket line codes standard ethernet connecting Ethernet socket hack existing instructables wires networking terminating steps connectors cnet explained control keystone Hack your house: run both ethernet and phone over existing cat-5 cable
ethernet - CAT5 for telephony - Electrical Engineering Stack Exchange
Hack Your House: Run Both Ethernet and Phone Over Existing Cat-5 Cable
ethernet - CAT5 for telephony - Electrical Engineering Stack Exchange