Further to kitz post, for fully accurate line testing when required you can cut the test resistor out of the NTE5.
Since it isn't ever going to be used as the official master, it might be worth while.
When you have the "network" part of the NTE5 in your hand your notice the back all just clips together, simply release the clip and the back plastic part will come away and the circuit board will be accessible. Then simply use pliers to remove the test resistor. Then reassemble.
The clarity article mentions how you can adapt a lead to plug in the NTE5 if your not permitted to touch the hardwired cabling. If this is the case, consider using proper extension cable and a plug crimping set. You can wire a BT plug with extension cable as shown in a diagram
here.
If wiring up an NTE5 master, I would probably remove the orange pair from the cable to help prevent confusion. Perhaps this would also help DSL connections as it means there is no ring signal on the wire.
