[Asterisk-Users] Fwd: [ISN] Voice Over IP Can Be Vulnerable To Hackers, Too

[tmpm]

ive heard he's a child molester now....or got popped for it...

At 22:53 5/14/2004, you wrote:
>What ever happened to Draper (Capt. Krunch)?
>
>Simon Dorfman wrote:
>
>>On 5/14/04 9:02 PM, "tpanton at attglobal.net" <tpanton at attglobal.net> wrote:
>>
>>>Folks seem to have forgotten that
>>>the original hackers were hacking
>>>"stable and secure" traditional PBXs
>>>with captain crunch whistles!
>>>
>>>Mitnik ran wild through PBX's and mobille networks.
>>>
>>>Let's work to set up secure VOIP, but
>>>don't let anyone kid you about the golden days when telephones were secure!
>>>
>>>
>>>(for extra points, why's the hacker mag called 2600?)
>>
>>Extra points please:  because 2600Hertz is the frequency of the tone
>>required on the old phone system to get free calls.  There was a whistle
>>that came in a captain crunch box that happened to produce this exact
>>frequency.  Or something like that.  I'm too young to know this stuff first
>>hand... I suppose I could look it up...
>>Ah yes, google reveals this:
>>http://whatis.techtarget.com/definition/0,,sid9_gci211496,00.html
>>--------------------------------------------------------------------------
>>  2600 is the frequency in hertz (cycles per second) that AT&T formerly put
>>as a steady signal on any long-distance telephone line that was not
>>currently in use. Prior to widespread use of out-of-band signaling, AT&T
>>used in-band signaling, meaning that signals about telephone connections
>>were transmitted on the same line as the voice conversations. Since no
>>signal at all on a line could indicate a pause in a voice conversation, some
>>other way was needed for the phone company to know when a line was free for
>>use. So AT&T put a steady 2600 hertz signal on all free lines. Knowing this,
>>certain people developed a way to use a whistle or other device to generate
>>a 2600 hertz tone on a line that was already in use, making it possible to
>>call anywhere in the world on the line without anyone being charged.
>>Cracking the phone system became a hobby for some in the mostly under-20 set
>>who came to be known as phreaks.
>>  In the 1960s, a breakfast cereal named Captain Crunch included a free
>>premium: a small whistle that generated a 2600 hertz signal. By dialing a
>>number and then blowing the whistle, you could fool the phone company into
>>thinking the line was not being used while, in fact, you were now free to
>>make a call to any destination in the world.
>>  Today, long-distance companies use Signaling System 7, which puts all
>>channel signals on a separate signaling channel, making it more difficult to
>>break into the phone system.
>>--------------------------------------------------------------------------
>>Simon in New Orleans
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>
>--
>Michael Welter
>Introspect Telephony Corp.
>Denver, Colorado
>+1 303 674 2575
>mike at introspect.com
>www.introspect.com
>
>
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