I've seen the three wire braded cable. I think that I might have a few small sections stashed away in the basement. Based upon the discussions, it seems that JK wasn't intended to support two POTS lines despite having four conductors.
A while back, I had combined my church's two voice lines onto a single JK cable which ran about a total of 10 linear feet between the Verizon H-202 cabinet and the 66 block I had installed as a demarc.
After the church service ended today & the 4 or 5 people left the building, I pulled a hank of JK out of my stock and moved the second voice line over to it. I suppose such a short run between the cabinet and the 66 block wouldn't pose a crosstalk issue, but, I figured that I would separate the lines again.
