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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 Parma Heights 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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Friday October 03, 2008,
02:16 pm ET
Parma Heights, Ohio, Oct. 03 /Craig Docken/ --
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.
The Ohio 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.
One might think that, given the cost - benefit analysis of the integrated T1 value
proposition, more businesses would be changing over to the new platform. However,
the rate of adaptation is rather slow. Rob Butler, head of the Telecommunications
Research Institute, thinks that "phone companies have a problem with trust amongst
their user base. For many years, customers have dealt with increasing rates, long
hold times, and frustration in general. Now, it appears, the ice is finally starting
to melt and customers are opening themselves up to new technology.
"The average cost of a business phone line from the Local Bell Operating Company (ILEC) has
remained constant for the past ten years" noted Edwin Jones, a senior market analyst and
telecom industry expert. "At the same time the prices of T-1 lines have declined from near
$1000 per month to a staggering $350. Keeping in mind that a T1 connection is the equivalent
of 24 regular phone lines all bundled into one, it comes as no surprise that demand for these
services in on the rise."
There are two basic "integrated" DS-1 configurations, analog and digital. The 24-line
bundle in which they come is termed a "trunk". The main difference between analog and
digital trunks is their flexibility. With digital trunks, voice lines not in use
can be dynamically reconfigured to carry data traffic, so they don't sit idle.
Analog trunks on the other hand can not change their function once configured
by the service provider. Data channels remain data channels and the same for
voice channels, even if there is no voice traffic.
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.
Once a forgotten segment of the business telecommunication landscape, small to medium
size businesses are finally being serviced with products (like the dynamic integrated
T1 line) at prices they can afford. Gone are the days when the Bells can shove TDM
services down the collective throats of SMB's at prices that resemble a mortgage rather
than a telephone service. The only thing that can get in the way of future progress is the law. You know, the one
that requires the RBOCs to lease their local loops to CLECs at a reduced rate so that
the customer can get a dedicated connection between their office and the CLECs' network.
If the FCC decided to lift this requirement, this whole deck of cards could come down
in a hurry, and when it does, you can kiss dynamic integrated T1 service for under $500
good bye!
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