For the purposes of information only:
The Greek home direct number still accepts certain 2400/2600 hertz tones
(its a toll free number for doing reverse charge calls to greece, Im not
sure what you would call from the US to get to it), and last I heard you
could still use an old style bluebox to dial anywhere in the world on that
exchange as of about 6 months ago. Im not sure if this is still current, or
if US exchanges filter those tones.
Cheers
Andrew
-----Original Message-----
X-Loop: openpgp.net
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Steve Mynott
Sent: Thursday, July 27, 2000 12:36 PM
To: Multiple recipients of list
Subject: Re: 2600 - bell toll signals
On Thu, Jul 27, 2000 at 02:20:26AM -0400, !Dr. Joe Baptista wrote:
> I'm looking for a list of telephone company modulation frequencies used on
> toll lines (trunk lines) to control switching between offices. Anyone
> know where I can find them. Used to know them by heart - 2600 to disconect
> and 300 - 1200 ?? for the control tones.
You are refering to R1 signalling which is obsolete. Most developed
countries use out-band signalling now. Some American phreaks of a few
years back claimed Alaska and Hawaii still used this, although this is
probably out of date.
Modern blueboxers use C5 and R2 international signalling and there
is plenty of information on the net. Google for it. If you can't
use the web then you are unlikely to be able to get this to work.
This has cypherpunk relevance more for obscuring the source of
telephone calls than toll fraud.
--
1024/D9C69DF9 steve mynott [EMAIL PROTECTED]
as far as the laws of mathematics refer to reality, they are not
certain;
as far as they are certain, they do not refer to reality. --albert einstein
