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

North, South Carolina, Jun. 25 /David Onaindia/ -- To illustrate the types of decisions that small business owners are faced with on a daily basis, we interviewed Glenda Probst, small business owner in Los Angeles, California, about her recent move to a dynamic integrated T-1. "I was in a quandary about how to go about expanding the number of voice lines to my business. Before making the move to a dynamic integrated line, I was using POTs lines. After the fifth line, my bill was above $300/month, not including my $100/month DSL connection. Now, I have 12 pure digital voice lines, 1.5 MB of broadband, and I pay under $400 for it. It was a major upgrade in service with a reduction in total price. I only wish I'd learned about this product sooner."

The South Carolina area is one place in particular where the analog to digital revolution is gaining traction. One business owner we interviewed about his recent decision to become a digital convert, Peter Anderson, explained that "my biggest hindrance was my ignorance. Had I known that there was a solution that would allow me to increase the number of voice lines, get a full T1 (1.5 MB) of high-speed Internet, all for less than I was paying for my POTS/DSL configuration, I would have made the move a long time ago." Many others like Mr. Anderson are coming to the same conclusion.

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.

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 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.

Expect innovation to continue on its upward spiral as the CLECs continue to expand their footprints as well as their customer bases. Barring any funny stuff from the FCC, the CLECs will be here to stay. Sorry Ma Bell.

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