DIY Home Telephone Wiring - Easy Do It Yourself Home Now that you have your phone jack wiring complete, you must now hook the telephone wire up to the connecting block. Again, depending on the age of you home, the conecting block could be as simple as two screws. A red and a green. Connect the red wire (or blue/white) to the red side and the green (or white/blue) to the green side. How to Organize an Old Telephone Home Wiring Block How to Organize an Old Telephone Home Wiring Block: My house was built in 1962 and it still has the original telephone wiring block. Although I have asked the telephone company to install a network interface device, which is the gray box attached to your home outside, the technician suggested to ke..