Awhile ago I was asked to rewiring a company’s 66 Block, a type of punchdown block used to connect sets of wires in a telephone system, because they wanted to replace their plain old telephone service (POTS) with multiple VoIP telephone lines. I had little knowledge on the 66 Block before doing this job, so I got out my trusty Beige Box to figure out how it was wired. Here’s a short video on how to tap a 66 Block. (Watch Episode 6 if you need help making a Beige Box)

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