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 Ammon T1 line is in common use today in ISP (Internet Service Provider) connections to the Internet

Ammon, Idaho, May. 29 /Ron Franatovich/ -- During the 2000 Internet bubble meltdown, the telecom industry learned the hard way that wild spending on network infrastructure was not the best approach to attracting new business and investment. Over the past 7 years the industry, particularly the CLECs (Competitive Local Exchange Carriers) have been focusing on building products that offer more bang for the buck in order to compete with the Bells in their own backyards. One product that has become the flagship offering to small to medium size businesses is the dynamic integrated T1 line, which combines all the usefulness of 24 regular phone lines into a singe T-1 capable of delivering high-speed broadband on the same connection.

"For years I've played tug-o-war with the phone company who provided voice and data service to my toy manufacturing company" commented Troy Bergfeld of Houston Texas. "They kept trying to sell me services I didn't need, it took them months to finally send me a correct bill, and I wasn't able to recapture bandwidth from my T1 line when nobody was using the phone. Now that has all changed - my Telarus product specialist recommending I give XO Communications a try. Now I use their FLEX T1 product and I pay less and get exactly what I want. I have even add another T1 seamlessly when the time comes for my business to expand."

"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."

Given the fact that many companies still to this day have yet to make the change to digital SIP-trunking enabled dynamic T1s, one must ask why the delay? The value proposition that dynamic adds and the economic benefits are there, however, the technology is slow to be adopted by mainstream corporations. One reason for this lag is the bad reputation that telecom companies have built for themselves through the meltdown of the industry from 2000 to 2003, when many companies either went out of business, merged with other larger companies, or just hunkered down and weathered the storm. Now that the industry has made great strides to stabilize by offering better rates, better products, and better customer service, small business owners are gradually starting to listen to the presentations being made by consultants and inside sales agents. With that increase in confidence, and with the growing number of testimonials being offered by happy customers, businesses are becoming less reluctant to make the jump.

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.

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.

As the competitive local exchange carriers continue to compete by introducing new and exciting products at prices most small businesses can afford, they are coming up against increasing resistance from the RBOCs who are forces to lease their own copper lines to these CLECs at reduced rates. This reality has the CLECs rushing to deploy their own networks and fiber routes, but the FCC may ultimately relax the mandate - leaving all of us wondering how long the party is going to last. Looking in the crystal ball of the future, it is clear that new an innovated services being offered by the few super-CLECs remaining will drive innovation higher and prices lower. New technology is being pressed to the forefront by lower prices that the mainstream of small businesses everywhere can comfortably afford.

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