First off, I am not trained in this system at all and have had to figure everything out as I go along. I have the system set up, line one has a dial tone and can make and receive calls. I have line one wired into port 201 the white/blue and blue/white wires, and line 2 into the white/orange and orange/white wires. The phone recognizes line 2, I have line one and line two programmed to their respective buttons, and can use line one perfectly. Line 2 has no dial tone and can not make or receive phone calls. I am a computer tech, and don't really know phone systems. Any help at all would be appreciated.