[VoIP] Registered Jacks

[Duncan Smith]

On Thu, Dec 06, 2007 at 03:28:11PM -0800, Mark Rudholm wrote:
> So, given your obvious erudition on the topic, did you really not
> know that "RJ9" was commonly used to refer to the 4-position jacks?
> I always thought it was pretty commonly known, if not standard.

I'm going to have to pipe up here, regardless of offtopicness.
According to the discussion, RJ-9 doesn't mean anything.  But I grew
up calling a 4P4C jack "RJ-9".

I'd be willing to bet that it arose when someone saw an RJ-11 style
(6P6C) and thought to themselves, "hmm, if a 6P6C is RJ-11, I bet a
4P4C, two less, is an RJ-9, two less!"

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Duncan Smith  --------\    http://students.washington.edu/f/    /---
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