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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 Hitterdal T1 line is in common use today in ISP (Internet Service Provider) connections to the Internet
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. -
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 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.
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Wednesday October 08, 2008,
01:02 pm ET
Hitterdal, Minnesota, Oct. 08 /Zackary Smith/ --
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.
The Minnesota 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.
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.
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.
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 real benefit I've seen since upgrading to a dynamic integrated T1 from Nuvox
Communications is simplicity" commented Johan Sebastian, a small business owner in
Clearwater, Florida. "My phones work great, my internet is fast, and the best part
is the reliability; I haven't had a single outage since I signed up for the new
service over a year ago. Before when we had DSL and POTS lines, every day was
an adventure."
Recent advances in technology, fostered by competition from growing CLECs, is bringing
integrated T1 services to small business everywhere. And the trend doesn't look like
it will change anytime soon. CLECs continue to grow their networks, offering more
advanced services like metro ethernet, MPLS, and more. 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.
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