Typically you will use only the White/Blue pair for a single line phone. * Pin #3- Negative terminal (red- old color code/blue- new color code) * Pin #4- Positive terminal (green- old color code/white with blue stripe- new color code) -- Embarq DSL 1500/386
ok so from looking at other phone cords in my house their is 4 slots their is only 2 slots in use which is the middle ones. Now from what your say the blue and the blue white is that should be one side and the other side should be blue and the blue white but switched. So lets say on one side it goes blue the blue white. Then the other side should go blue whit then blue.