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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 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 3. -
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 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 Mc Gaheysvlle T1 line is in common use today in ISP (Internet Service Provider) connections to the Internet
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Monday October 06, 2008,
08:32 am ET
Mc Gaheysvlle, Virginia, Oct. 06 /Aaron Bashorun/ --
Business broadband, its price, and who can afford it, are changing. Every day an increasing number
of business are finding the new broadband services made available to them by the "new" telecommunications
companies that are emerging from the latest round of mergers and acquisitions. Overlapping networks
are being consolidated into bigger and leaner footprints, lowering the cost of dynamic integrated
digital signal 1 (DS1) service to the price range of about five regular phone lines. Small to medium
size business can now afford services once reserved for the Fortune 1000 companies.
When asked about his recent decision to replace his TDM channelized T1 with a
SIP-enabled dynamic T1, Robert Probst, small business owner in San Diego, explained
that "it was really an easy decision to make. My business was growing and I couldn't
afford the cost of more voice trunks. When I learned that it was possible to
have up to 16 voice lines, and a full data T1 of high speed Internet bandwidth,
all on the same line, for under $500 - I was sold. I ended up expanding the
telecom capability of my business, improving the quality of my Internet connection,
and saved money while doing it."
The irony of the new small business communications revolution is that it took so long
to gain traction. The whole idea of reclaiming inactive voice channels for data applications
is not new, and was introduced by many CLEC operators over five years ago. So why did
it take so long for SMB's to adopt the technology and make the change? One might argue
that the Internet bubble burst in 2000 shook many people's confidence in telecommunications,
one of the hardest hit industries. With so many telecoms going out of business, or merging
with other small players just to stay solvent, many customers took the "wait and see"
approach before making the decision to entrust their communications with a company not
associated with Ma Bell. Now that economic Darwinism has taken hold, the remaining companies
are attracting new customers who see the benefits of the new technology without the downside
risk of loosing service or not being able to get through to customer service in the pinch.
The two basic Integrated T1 line configurations, as they exist in today's
market, are analog and digital. Commonly referred to as "trunks", these 24-channel
bundles transmit TDM signals directly to the service provider's network via a
local loop. Unlike analog trunks, whose configuration can not change once the
channels have been allocated, digital "dynamic" lines can change reconfigure
themselves from data, to voice, and back again. This ability to reclaim voice
channels for data broadband access when not in use gives the user the performance
of two T1's in one.
The Integrated T1 line has two general flavors; analog and, of course, digital.
The term "trunk" is synonymous with an integrated T1 line, representing 24
bundled DS0 (regular 64KB) channels. Digital trunks form the basis technology
for dynamic integrated lines, which are capable of transporting digitized
versions of voice traffic in addition to regular data packets. This ability
of digital trunks to function in the data realm allows it the ability to
dynamically allocate traffic according to the application, allowing priority
for voice traffic and "re-claiming" that bandwidth for data transfer when the
phone call is completed. This ensures that none of the capacity of the
T1 line is ever wasted.
"The marriage of lower price points and feature-rich T-1 services have made it so that
customers can now get more bang for less buck" observed Kent Stallions, telecom expert
at PK Communications. "The good old days of the Bells charging people $50/month for
regular POTs lines without them having another alternative are over. With the advent
of sub-$450 dynamic integrated T1 service, businesses are able to get up to 1.5 Mbps
of Internet connectivity and 24 phone lines all in one package, for less than what they
pay now for 5 regular phone lines" Stallions continued.
Evolution has lead to a better, cheaper alternative to TDM services that the Bells were
peddling for decades in a vacuum of competition. Now the industry, lead by the innovation
and great business practices of the CLECs, seems to have turned a corner - leaving the
incumbents playing catchup. Obviously, the main benefactor of all of this competition
is the small to medium size business - a segment of the market that was taken for granted
until today. Will this train of innovation, lower prices, and services that add value to SMB's continue
to roll down the tracks of progress? It's all up to our government - and which political
party controls the FCC. Without the deregulation act of 1996, we would have never known
just how much the CLECs were capable of.
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