OK, I am NOT a "phoneman", so I don't qualify as an authority on what requires a "phoneman's" expertise. I'm a data guy. Not who contracts out, a captive one, working for a manufacturing company. We've got almost twice as many computers as phones, lol.

I can qualify as an expert on what we DIY'ers think that we can do. We can find out damn near anything on the internet. Copy/paste this: "primary secondary colors cable 25 pair" into google and see what you come up with. [Linked Image from sundance-communications.com] So it's not just that we can get any hardware we want, we can get the information we need, too.