Arduino frequency Phone Tone.

Not sure if I'm in the right place. But There are these phone probes to tell from one end of where the phone wire is at to the other end a line of some kind of tester when putting the probe on one end can figure out on the other end which wires are which some kind of I'm guessing. I would like to create one using a arduino But I'm not sure how to make one of theses. Could someone please help me out.

I guess it's also called a tracer of some kind.