How do you wire a telephone jack with 3 separate phone lines?

Question

I have a RJ12 phone jack. I have 3 separate phone lines coming into 1 box that need to be wired to the jack. The phone company said to use only the red and green wires in each line. I have done this, but I only have 2 lines working. I have checked the box outside and it is ok. What am I doing wrong?

Answer 1

Are you using a 6-pin mounting cord? Also swap working line with the one that is not to make sure it is ok inside.

Answer 2

How do you have it wired and what kind of box is it.  Does it have green, red, black, yellow, blue and orange wires inside, or are they blue/white, blue, orange/white, orange, green/white, green, brown/white, brown?  IM me if you want me to walk you through it

Answer 3

See if this works:

Pin 1=Tip, Line 3, Positive wire, Blue

Pin 2=Tip, Line 2, Positive wire, Yellow

Pin 3=Tip, Line 1, Positive wire, Green

Pin 4=Ring, Line 1, Negative wire, Red

Pin 5=Ring, Line 2, Negative wire, Black

Pin 6=Ring, Line 3, Negative wire, White