Regarding price - don't forget that if you strip it down to the speed of DSL
the price gets more competitive. And 10 years ago the going rate for T1 was
$2500. Things and prices happen fast in the world of telcom. What you really
pay for is bandwidth. Shop around. 

Regards,

thurman    
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:hardhats-
> [EMAIL PROTECTED] On Behalf Of Kevin Toppenberg
> Sent: Saturday, May 14, 2005 7:18 PM
> To: [email protected]
> Subject: RE: [Hardhats-members] RE: T1s and security
> 
> Thurman,
> 
> Thanks for this great info.  It still seems a bit
> pricy, but we may have to end up going with it...
> 
> Thanks
> Kevin
> 
> --- Thurman Pedigo <[EMAIL PROTECTED]> wrote:
> 
> > Ok. Let me try one more step. Agree there is some
> > confusion - T1 has been
> > around along time and is used in a variety
> > applications (with many name
> > modifications). Imagine 24 telphone lines each with
> > a 64k modem and bonded
> > into one data channel 1.536 mbps. Or just think of a
> > trunk with 24
> > distributed telephone lines. Both exampls are
> > applications of T1. Or you
> > could have a T1 with 8 phone lines and the other 1/2
> > (768kbps) used as a
> > data channel. This only a fraction of the
> > versitility of T1.
> >
> > We manage two T1's - one as a connection to an ISP
> > (through a firewall) and
> > another one point to point at home. Actually, I
> > prefer the term "nailed
> > down" (also called "private line")T1, "however point
> > to point" is more
> > common usage. Nailed down is a cleaner term when
> > talking with someone who
> > knows what it means and it is pretty much considered
> > "locked down" and
> > secure.
> >
> > The advantage of T1, aside from security, is it has
> > been around a long time
> > and there is a lot of used equipment at great prices
> > (Ebay). We connected
> > via AT&T Paradyne DSU and a Ciscopro router (with
> > Lan port) for something
> > like 25% of what the Telcom charges. We also did our
> > own programing and
> > wiring (needs a crossover cable), after the Telcom
> > installed a Hyperedge
> > box. My advantage is to have two sons pretty
> > sophisticated in networks and
> > telephone systems.
> >
> > Bottom line - T1 has been around a long time and is
> > probably the most stable
> > of all phone connections. It can be secure, it can
> > be connected to public
> > networks - not secure. Equipment is affordable. It
> > can be "full" T1 or it
> > can be fractional (price dependant). The tarrif is
> > typically based on how
> > far (miles) the line travels. All these iterations
> > may pass through multiple
> > swithces. It is up to the telcom to assure security.
> > Certainly it is more
> > secure than a phone conversation.
> >
> > Sorry if trying for brevity confounded things.
> > Welcome any comments or
> > corrections of this post.
> >
> > Thanks,
> >
> > thurman
> >
> >
> >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED]
> > [mailto:hardhats-
> > > [EMAIL PROTECTED] On Behalf Of
> > Cable One
> > > Sent: Saturday, May 14, 2005 1:06 PM
> > > To: [email protected]
> > > Subject: [Hardhats-members] RE: T1s and security
> > >
> > > I won't harp on this again... I promise. There
> > seems to be a lot of
> > > confusion about this and it can have bad
> > consequences if the wrong
> > > assumptions are made.
> > >
> > > Thurman, you're right a T1 is a hardwired (maybe)
> > connection between two
> > > locations. The network topology that you describe
> > is secure because of the
> > > topology not because it is a T1. The T1 is just a
> > time domain digitally
> > > multiplexed carrier of 24 64kb/sec DSOs. These
> > DSOs can be agregated for a
> > > full 1.54 Mb connection or can be sub-agregated
> > (fractional). They can
> > > carry
> > > voice and/or data.
> > >
> > > Let me describe a T1 that is NOT secure. It is the
> > one in my office. I
> > > have
> > > a T1 connection, the other end of which in located
> > in the offices of a ISP
> > > that belongs to some friends. The have an OC3
> > (45Mb/sec) connection that I
> > > get to put my mail server on. This T1 is private
> > in the sense that it
> > > carries only what I put on it, but it is NOT
> > secure because it IS part of
> > > the public packet switched network we call the
> > Internet.
> > >
> > > I would not assume that because you have a T1 that
> > it is secure and that
> > > firewalls are note required. Not to plug my own
> > profession too much, but
> > > it
> > > is a good idea to have a network engineer look at
> > your WAN design before
> > > you
> > > run medical data on it.
> > > Thurman's T1, as he describes it, is secure
> > because they are bringing the
> > > internet into the network through another channel,
> > and his T1 is already
> > > behind a firewall.
> > >
> > > Best regards,
> > >
> > > Donald R. Donigan
> > > donigan technology, LLC dba
> > > Desert CODE Works
> > > [EMAIL PROTECTED]
> > > [EMAIL PROTECTED]
> > >
> > >
> > >
> > > --
> > > No virus found in this outgoing message.
> > > Checked by AVG Anti-Virus.
> > > Version: 7.0.308 / Virus Database: 266.11.10 -
> > Release Date: 5/13/2005
> > >
> > >
> > >
> > >
> >
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