On Sat, 01 Sep 2007 11:37:31 -0700, professorpaul
wrote:

My NID has a cut-out for each phone jack. They just snap/pivot, and
the circuit is disconnected. Disconnect all of them. Then, one at a
time, reconnect and test the outlet, and see which one(s) work. I
assume that when you used the test jack, that you removed the jumper
cord that connects your house circuits to the common point.

Is there an arrangement where you don't have to do that?

In my NID, there is one jack per line, and I have to unplug my house
to plug in a phone (Unless that other jack is for the same line????)