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

Eagle, Idaho, Oct. 31 /Jason Young/ -- Small businesses all over the country are discovering a whole new universe of broadband access. As the price of commercial-grade telecommunication services continues to drop, more and more enterprises are starting to drop their plain old telephone service lines in favor of all-digital T1 trunks that deliver voice and data over the same connection. These new enhancements were made possible by the increasing pace of consolidation in the telecommunication industry along with the increasing value bigger phone companies can provide.

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.

From 1997 to 2007, the average cost of a POTS (plain old telephone service) line from the Bells has hovered in the $50 - $80 per month price range. During this same time period, integrated DS1 (digital signal 1) lines - which is the equivalent of 24 standard lines - have come down in price from $1000 per month to $400. Small to medium size businesses who have more than 5 phone lines can now actually save money by upgrading their service.

With any new advancement in technology there is usually a lag in the time it take users known as "early adapters" to try out and begin using the new services themselves. Although dynamic T1 service has been available in many US markets since 2005, it's just now that we have observed people beginning to embrace the new technology. One such business that recently changed from a voice PRI and data T1 line on to one, dynamic T1 line is Jason Oliver, a small business owner in Los Angeles, California. "When I found out that I could replace my two T1's with one single dynamic integrated circuit (offered by TelePacific Communications), I had two thoughts: 1- where do I sign, and 2- why didn't someone tell me about this sooner!"

"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."

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.

The only thing that can get in the way of future progress is the law. You know, the one that requires the RBOCs to lease their local loops to CLECs at a reduced rate so that the customer can get a dedicated connection between their office and the CLECs' network. If the FCC decided to lift this requirement, this whole deck of cards could come down in a hurry, and when it does, you can kiss dynamic integrated T1 service for under $500 good bye! With the help of super-CLECs like XO Communications, PAETEC, Nuvox, One Communications, Cavalier Telephone, and TelePacific, small business owners everywhere now have access to non-Bell service that is on par or better than those being offered by the former Bells. Integrated T1s that do more and cost less have transformed into a solid beach head for the newcomers.

Eagle ShoreTel Dealers | Eagle Nortel Dealers | Eagle NEC Dealers | Eagle Mitel Dealers | Eagle Cisco Dealers | Eagle IP PBX Phone System | Eagle Avaya Dealers