[VoIP] The Museum of Communications, Seattle

[Duncan Smith]

On Tue, Apr 17, 2007 at 10:17:13PM -0700, David Josephson wrote:
> Have you figured out how the panel exchange runs?
Sort of.  Most of my effort has been directed towards convincing the
3ESS to use its trunks.

> What is revertive pulsing?
Yup, got that one; receiving end sends pulses until the sender says
"stop".

> Can you program a digit absorbing step switch yet?
Nope.

> What do KP and ST mean?
Key Pulse, flags start of inband signalling; STart?, flags end of
signalling and start of routing.

> Why was 88 millihenries chosen for load coils?
I haven't the foggiest!

> > I have no specific Asterisk experience.
>
> That's easy to fix.  There is a lot of information on Asterisk on
> the net, much of it contradictory.  Reading through it all and
> figuring out what's real is a good exercise in learning it.
That sounds like almost everything else online.

> If you have time to devote to the project over the next few months
I won't be able to do anything until June.  :\

> of interfacing some of the museum switches to each other and to the
> outside world, that will be a really good way to learn a bunch of
> different things at once.
[ ... ]
> But I think there would be a raised eyebrow among the other readers
> if any one of us thought our posting so important that we needed a
> cryptographic signature to prove that it was authentic.

It's habit, not pretense.  Really!

-- 
Duncan Smith  --------\    http://students.washington.edu/f/    /---
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<Zeph> I have a uterus. I can put hearts wherever I want.