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Courtesy of ShopforT1.com
Definition 1. -
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 National City Bank T1 line is in common use today in ISP (Internet Service Provider) connections to the Internet
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. -
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 4. -
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.
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Tuesday June 10, 2008,
02:42 am ET
National City Bank, Kentucky, Jun. 10 /Ron Franatovich/ --
Small businesses all over the country are discovering a whole new universe of broadband access.
As the price of commercial-grade telecommunication services continues to drop, more and more
enterprises are starting to drop their plain old telephone service lines in favor of all-digital
T1 trunks that deliver voice and data over the same connection. These new enhancements were
made possible by the increasing pace of consolidation in the telecommunication industry along
with the increasing value bigger phone companies can provide.
The adoption of any new telecommunications platform is never instantaneous. Many
technologies, like VoIP for example, have been in the works for years without
gaining much traction. Enterprises see communications as their life blood. Even
though many are becoming aware of newer, cheaper mediums by which they can conduct
business, the risk still outweighs the rewards in their minds. Couple the
'if it isn't broken, why fix it?' mind set with the telecom meltdown of the early
2000's and it isn't surprising that widespread adoption of new telecom services
has lagged. However, the new technologies of IP-based voice systems are finally
starting to gain an audience, and the chorus of satisfied customers continues to
grow. As this momentum pushes forward, so does general acceptance of it viability.
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.
Min Lieu owns a small insurance agency in Kentucky. Five years ago he signed up with
XO Communications for a TDM-based integrated T1 line for $870/month, which did not
include local or long distance calling. Recently, he was offered XO's version of
a dynamic circuit called "XO Flex" for half of the price he was already paying.
"I would have been a fool not to take the deal" stated Mr. Lieu. "I'm able to
add headcount with additional voice lines, without any increase in expense or
degradation in high-speed Internet performance."
The question remains, if this new technology is so progressive, why did it take over five
years to gain broad appeal to SMB's across the country? One industry analyst from the
Telecommunications Research Institute observed that many customers who consume commercial-grade
phone service became very untrusting of telecom providers after the Internet bubble burst
in 2000 and the MCI bankruptcy proceedings full of allegations of fraud and embezzlement.
After all, no customer wants to come to work one day just to find out that their connection
to the outside world has been shut down due to financially unstable service providers not
being able to run a profitable or ethical business. Now, due to a series of acquisitions
and mergers, the "survivors" are offering great products at rates that SMB's can't continue
to ignore. The CLEC's and Bells are quickly gaining traction with the very important
demographic.
Is the era of the analog trunk, or bundle of 24 DS-0 (64 kbps) channels,
officially over? Possibly, thanks to the two-for-the-price-of-one features
of a dynamic integrated T1, which can function exactly like a pure 1.5 mbps
data T1 when no one is one the phone, and allocate required bandwidth
for voice traffic when a user initiates a phone call. Likewise, as soon
as the client terminates the voice session, the 64 KB is re-assigned back
to the digital universe. This switch-hitting capability provides all
of the feel and function of a data T1 and voice T1, for a fraction of the price.
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. 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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