Thanks, I have seen something similar to this made by Radio Shack [are they still in business?] where you insert this between the male and female plug and you can get 3 lines off of it. Your device though just connects to the female end of the 25-pair cable and that end is now essentially terminated, so I would have to run another 25-pair or use a bridging adapter. Can the 149B be used to pull off a tip and ring pair or not?

Bill