|
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 Mt Vernon 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.
|
Wednesday June 17, 2009,
12:39 pm ET
Mt Vernon, New Hampshire, Jun. 17 /Cynthia Thomas/ --
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.
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 same basic economic model described in the book "Blue Ocean Strategies" is now being
applied to telecommunication services being offered to small businesses across the country:
more value for less money. According to many industry watch dogs, hundreds of thousands
of business will dump their POTs lines in favor of dynamic integrated T1 service within
the next 12 to 24 months, saving money in the process. With the introduction
of sub-$475 dynamic integrated T-service, customers are now able to receive up to 1.5 MBPS
of high-speed Internet with 24 digital phone lines all on one line, for less than what they
pay now for 5 regular phone lines" Stallions continued.
"Like Forrest Gump said, finding the right phone service for your business is
like a box of chocolates - you never know what you're going to get" joked
Elizabeth Forest of Detroit, Michigan. "Before finding Cavalier Telephone
through my Telarus agent, I was mislead into signing up for services that weren't
a good fit for my business. Add to that the billing inaccuracies and the hassle
it was to get everything straightened out. My new integrated T1 works flawlessly,
I am able to get full T1 data speeds when no one is on the phone, and I don't
fear opening the bill when it arrives in the mail each month."
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.
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.
|
If you would like to get a real-time 
