Definition 1. - 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 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. - 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 4. - 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 T1 line is in common use today in ISP (Internet Service Provider) connections to the Internet

Alabama, Apr. 29 /Aaron Bashorun/ -- The early adapters of this new technology have realized a cost savings that helps them be more competitive in the market space. By saving hundreds of dollars each month, which equates to thousands of dollars per year, small businesses are able to do more while spending less on their telecom bill. This savings allows for hiring of additional staff, upgrading equipment, and other activities that make the enterprise more productive and profitable. Many in the industry see the lack of mass adoption of this new technology as just shear ignorance and/or a lack of trust for telecom sales people.

"Commercial telecommunication providers were never on my Christmas card list" commented Jake Chang, a small business owner in Denver, Colorado. "Dealing with them meant erroneous bills, long wait times when trying to reach customer service, and taxes I could never understand. Now that we migrated to a dynamic integrated T1, my phone lines and high speed internet are bundled into one line with super reliability. Not to mention the fact that XO Communications, a CLEC, treats me like they actually want my business - not like I'm a pain in the you-know-what."

"Even though we have been witnessing the re-consolidation of AT&T, we will never go back to the dark ages of telecom where customers were stuck with bad customer service and high prices" commented Troy Karlson, telecom analyst for e-STAR. "The competitive local exchange carriers (CLECs), all whom own their own networks and compete directly with the Bells, have created products such as dynamic T1 service that enables its customers to connect to the Internet at 1.5 MBPS and have up to 24 regular voice lines, packed with a feature-rich suite of add-ons, all for under what it costs to have 6 regular phone lines from Qwest/AT&T/Verizon.

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.