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Courtesy of ShopforT1.com
Definition 1. -
The T1 (or T-1) carrier is the most commonly used digital line in the United States, Canada, and Japan. In these countries, it carries 24 pulse code modulation (PCM) signals using time-division multiplexing (TDM) at an overall rate of 1.544 million bits per second (Mbps). T1 lines use copper wire and span distances within and between major metropolitan areas. A T1 Outstate System has been developed for longer distances between cities.
Definition 2. -
A high-speed digital connection capable of transmitting data at a rate of approximately 1.5 million bits per second. A T1 line is typically used by small and medium-sized companies with heavy network traffic. It is large enough to send and receive very large text files, graphics, sounds, and databases instantaneously, and is the fastest speed commonly used to connect networks to the Internet. Sometimes referred to as a leased line, a T1 is basically too large and too expensive for individual home use.
Definition 3. -
A type of high speed Internet connection that provides a great deal of bandwidth. Many businesses lease T1 lines to connect to the Internet, but because they are expensive and offer more bandwidth than most small businesses and homes need, they are not realistic solutions for small and low-demand Internet users.
Definition 4. -
The T-carrier system, introduced by the Bell system in the US in the 1960's, was the first successful system that supported digitalised voice transmission. The original transmission rate (1.544 Mbps) in the Fairfield T1 line is in common use today in ISP (Internet Service Provider) connections to the Internet
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Friday August 22, 2008,
03:20 am ET
Fairfield, North Dakota, Aug. 22 /Richard Anderson/ --
During the 2000 Internet bubble meltdown, the telecom industry learned the hard way that
wild spending on network infrastructure was not the best approach to attracting new business
and investment. Over the past 7 years the industry, particularly the CLECs (Competitive
Local Exchange Carriers) have been focusing on building products that offer more bang
for the buck in order to compete with the Bells in their own backyards. One product that
has become the flagship offering to small to medium size businesses is the dynamic integrated
T1 line, which combines all the usefulness of 24 regular phone lines into a singe T-1
capable of delivering high-speed broadband on the same connection.
"True convergence means that I can finally have just one phone company, without being
at the mercy of Ma Bell" added Steven Lankto of Jersey City. "Having a data pipe that
is intelligent enough to know when it needs to become a voice pipe, without any input
from me, is genius. I'm glad that the technology is here and in the price range
of businesses like mine." Mr. Lankto isn't alone; there is now widespread acceptance
of integrated voice and data service in the New York metro area and across most
larger U.S. cities.
The North Dakota area is one place in particular where the analog to digital
revolution is gaining traction. One business owner we interviewed about
his recent decision to become a digital convert, Peter Anderson, explained
that "my biggest hindrance was my ignorance. Had I known that there was
a solution that would allow me to increase the number of voice lines,
get a full T1 (1.5 MB) of high-speed Internet, all for less than I was paying
for my POTS/DSL configuration, I would have made the move a long time ago."
Many others like Mr. Anderson are coming to the same conclusion.
The old-school integrated T-1 was analog in nature, and came with 24 configurable
channels (called a trunk) which could be configured to carry either voice or data
traffic. The new "dynamic" trunks are all-digital and can change on-the-fly
to carry either data or voice traffic. This comes in handy when none of the voice
lines are in use - all channels can revert to carrying data traffic, giving the
end-use a full 1.5 MBPS of broadband. Each phone call requires only 64K of bandwidth,
so even a small handful of calls only slows down the data connection by a nominal
amount.
Integrated T1s comes in two basic configurations: digital and analog trunks, with a trunk
being a 24-line (or channel) bundle. The newer, digital trunks, however, are able to
run both voice and data over the same channels. By assigning priority to the voice
traffic whenever it is present, a dynamic integrated trunk can provide the end-user
with a full 1.5 MBPS of data throughput if no phone calls are in progress. As more
voice lines are required, less data lines are available. Analog trunks are all
pre-assigned to either voice or data traffic, and do not reconfigure in the event
there is no voice traffic.
"I think the telecom industry in general has turned a corner" opined Jerry Gold of
Boston, Massachusetts. "They have finally developed products that are understandable
by the industry outsider and, thanks to competition, priced these services in a
range that most small businesses can afford. For over 20 years I dreaded dealing
with 'the phone company'. But now that I've switched over to One Communications,
my integrated T1 is doing everything I need it to, for under $450/month. One
actually answers their customer service calls and makes me feel like I'm part
of their family. It was a long time coming, but I'm finally able to end the
fight with the phone company so I can focus on my sports memorabilia store."
Expect innovation to continue on its upward spiral as the CLECs continue to expand
their footprints as well as their customer bases. Barring any funny stuff from the FCC,
the CLECs will be here to stay. Sorry Ma Bell. With the help of super-CLECs like XO Communications, PAETEC, Nuvox, One Communications,
Cavalier Telephone, and TelePacific, small business owners everywhere now have access
to non-Bell service that is on par or better than those being offered by the former
Bells. Integrated T1s that do more and cost less have transformed into a solid beach
head for the newcomers.
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