|
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 Cromwell 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.
|
Tuesday May 05, 2009,
10:12 pm ET
Cromwell, Connecticut, May. 05 /Brendan Luna/ --
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.
"When we moved into our new location here in Los Angeles" commented John Baker, a
small business owner in San Diego, California, "we feared having to sign up for
commercial telephone and internet service. Until about a year ago, the services
being offered to us were TDM, which doesn't come cheap. Thankfully our Telarus
commercial telecom broker recommended that we give TelePacific a try, and we did.
One year later, we've never had an erroneous bill, our phone and data are all on
one single dynamic T1, and we can focus on what we do best - brokering mortgages."
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.
"What we're seeing here is the Bells holding their prices steady and milking their high
margins on POTS (plain old telephone service) lines for as long as possible. With the
lower prices being offered by CLECs (Competitive Local Exchange Carriers) on dynamic
integrated T-carrier services, the Bells are scrambling to keep pace before enterprises
realize they can actually save money by upgrading to bigger and more reliable circuits."
commented Don Rosebush, industry expert.
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.
But how much longer will we continue to see improved technology, services, and prices?
It's all in the hands of the Federal Communications Commission, as they have the power
to sqwash the CLECs by proxy. No wonder AT&T and Verizon are the two biggest lobbying
powers in Washington. It makes you wonder what kind of services they would be able to
offer had they plowed that money into R&D instead of politics.
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.
|