I'm running cat5e to a workshop in my backyard to use for a phone.

I have the following questions:

1. I'm going to install one end of the cable directly into the NID. Is this
acceptable...do I piggy back (place over the top) of the existing wires
inside the box ??

2. What color wires do I use for this installation ??

3. How do I transition the workshop end of the cable into a wall plate that
will accept the smaller phone jack ??

Thanks in advance....