Definition 1. - 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 2. - 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 3. - 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 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

Arkansas, Dec. 22 /Jason Young/ -- Min Lieu owns a small insurance agency in Arkansas. Five years ago he signed up with XO Communications for a TDM-based integrated T1 line for $870/month, which did not include local or long distance calling. Recently, he was offered XO's version of a dynamic circuit called "XO Flex" for half of the price he was already paying. "I would have been a fool not to take the deal" stated Mr. Lieu. "I'm able to add headcount with additional voice lines, without any increase in expense or degradation in high-speed Internet performance."

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.

Arkansas is a place that we found was a hot spot for small business owners making the move over to dynamic T-1 lines. One business owner that we interviewed gave glowing reviews of his move to TelePacific's "OnePac" dynamic product. Keith Gray explained "I used to have a regular integrated T1 with 10 voice lines and 14 data channels. When no one was using the phone in my office, we were limited to just 896 KB of bandwidth. After searching on the Internet for better options, I found that I could reduce my price from $850/month to $500/month, and at the same time have 14 voice lines and 1.5 mbps of broadband. I didn't take long for me to pull the trigger and make the change."