On Sat, 09 Feb 2013 22:10:47 -0800, Jeff Liebermann
wrote:

On Sun, 10 Feb 2013 00:29:42 -0500, micky
wrote:

What's the quiet line?

If you hear buzz, clicks, hummmmm, noise, crackly, etc on the phone,
the first step is to determine whether it's a problem at the CO
(central office), on the line, or somewhere in the inside wiring. To
eliminate the inside wiring, simply plug the tester into the NIU
(demarc), thus disconnecting the house wiring. To determine if it's
coming from the switch at the CO, dial a quiet line number. All it
does is terminate the call to a perfect dummy load, that does NOT go
through the switch. If the noise disappears, it's coming from
somewhere inside the CO. If it's still there, it's on the line
somewhere.

Does every phone company have this? Does
Verizon?

Yes, yes, and I don't know the Verizon number.

Please provide any number that you know. I am willing to bet that it is
industry standard.

?-)