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Author Topic: Really odd numbers  (Read 2502 times)

Offline Skunkworks

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Really odd numbers
« on: October 03, 2009, 10:59:57 PM »
I found a very odd number.

Recording is attached. Its like a siren tone, here is a desciption of the sound:

the following is repeated 10 times: 620hz for 240ms, then 30ms silence, then 430hz at -2db in relation to previous tone for 240ms, then 30ms silence

after that there is a Click (and small LC ringdown) then 200ms silence and then another click (and small LC ringdown), then the whole thing repeats again

I sat on it a couple minutes listening, and it never did anything else.

I figured out it must not be anything very sensitive because it doesn't respond to DTMF, so here is the number: 301-999-9999
Turns out that there are lots of numbers in the 999 exchange that respond this way, while some such as 9900 go to a normal NIS message. I know these are based out of the hagerstown maryland CO, and being in the same LATA but a different CO and attempting to dial one on a pots line causes a normal NIS message when attempting to call a number that is usually the odd siren tone.

So WTF is this?
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Offline trevelyn

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Re: Really odd numbers
« Reply #1 on: October 04, 2009, 01:52:34 PM »
Yeah, i recognized the freequencies too, those are easy to pickout, though they sound more like 600 and 440 to me.
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Offline Skunkworks

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Re: Really odd numbers
« Reply #2 on: October 04, 2009, 03:31:58 PM »
Hah, I actually got them doing an FFT in audacity. So any idea what the heck this is?
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Offline Nod

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Re: Really odd numbers
« Reply #3 on: October 05, 2009, 01:21:55 PM »
It's a mind control device. I just hope for your sakes that nobody plays the trigger. Lord knows who you'll assassinate.
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Offline MIB

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Re: Really odd numbers
« Reply #4 on: October 05, 2009, 02:02:51 PM »
Damn Nod that's supposed to be top secret. I'll send you 1 million more to look the other way.

MIB
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Offline Nod

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Re: Really odd numbers
« Reply #5 on: October 05, 2009, 03:01:33 PM »
Oh no. I'm not falling for that again. Last time I got "a million more" from you it was a million more dog biscuits. You have to be specific this time.
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Offline Skunkworks

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Re: Really odd numbers
« Reply #6 on: October 05, 2009, 05:18:02 PM »
Harharhar

But seriously, wtf is this?

Why that tone, why not a reorder, or silence, or a regular NIS message like several numbers in the same exchange? Wtf is it for, some type of test?
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Offline MIB

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Re: Really odd numbers
« Reply #7 on: October 05, 2009, 06:15:23 PM »
Quote from: Nod on October 05, 2009, 03:01:33 PM
Oh no. I'm not falling for that again. Last time I got "a million more" from you it was a million more dog biscuits. You have to be specific this time.

I was wondering where they went to. They were meant for the guy who lives down the street. He cheated me out of $20 at a poker game.

There's $1,000,000 in small unmarked bills under a trash can near the payphone. If the pictures of the presidents aren't aligned, it was a "printing error" at the U.S. Mint. Yeah that's it.

MIB
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Offline trevelyn

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Re: Really odd numbers
« Reply #8 on: October 06, 2009, 04:00:12 AM »
honestly, someone could have just designed there test to have that certain tone pattern.  If the receiving device doesn't hear a perfect 440hz or 620hz, whatever it is, then it would report to the boneheaded technician that it is a bad line. 

just a thought.
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