Maybe and maybe not. I guess I shouldn't assume here.  Maybe they are needed for the electronics impaired, but I just had to giggle out loud over this.

So have a broken phone wire in my cubicle.  You know - the wire that connects the phone to the wall?

Brother Lou Roberts happened to have an extra one that he purchased, so he walked it over as a loaner to me.  Good friend, that Louie.

Here is the wire in question:

photo by Richie Phillips

As I turned the package over,  I happened to glance at the very thorough set of instructions

from RCA packaging

I'm going to go out on a limb here and say that if you can't figure out how to do this, then in the words of comedian Bill Engvall - "Here's your sign".  Just sayin'!