A T1 line consists of 24 individual phone lines bundled together. Each is capable of transferring data at 64Kbits per second. It can be used for voice, data, or both at the same time.
A T1 Internet connection can carry 24 digitized voice channels at the speed of 1.544 megabits per second.
A T1 Leased Line is a leased line used for voice, data, internet, etc. By “leased”, the company using the T1 line is actually renting the line, reserving it for their own bandwidth needs. This allows the user to maintain a single open circuit at all times, as opposed to traditional telephone services that use the same line for several connections through a process referred to as “switching.” It also provides constantly available bandwidth for data or internet access with a guaranteed minimum amount of bandwidth reserved and not oversubscribed by the ISP.
A “Full T1″ or a “Full T” is a term used to describe a circuit that provides 1.54 megabits per second (Mbps) of high speed Internet access, using all 24 “circuits”. These days, it’s probably over fiber and not 24 copper lines, so the 24 circuit term is just a throwback. T1 leased lines are used to carry telephone lines and VOIP calls.
A “Fractional T1″ uses only a subset of the 24 circuits or a portion of the available bandwidth of a full T1 line. Fractional lines can be used to provide the same services (Internet, networking, and voice services) as a Full T.
Fractional T1 lines are available in nearly any portion of the full T1 24 channel circuit. For example, the most common type of fractional T1 is a 12 channel connection, which provides 768 Kbps transfer rate. Since each individual channel provides 64Kbps, many connection speeds are
available.
An “Integrated T1″ is a popular solution for many businesses. The same T1 line can provide local, long-distance, and internet bandwidth all on a single connection. For example: 12 telephone lines, and 768 Kbps data transfer.
T1 circuits work with your existing phone wires. You will require a special piece of equipment to convert the T1 signal to Ethernet and/or Analog Voice Lines. Your network service provider will install new wires and equipment according to the requirements. A T1 Leased Line not only runs through conventional metal wires but also runs through fiber optical wires, twisted pair copper wire, coaxial
cable, digital microwave, and also through infrared. A T1 Internet connection can be used for linking remote offices together. It can also be utilized to bring Centrex service from the telephone company’s central office.
T1 vs DSL
While DSL is a quick and cost effective medium for high-speed internet connectivity, it is usually not intended to support commercial applications or many users at a time, however it may be perfect for a home internet business, or other small business. A T1 Internet connection is the ideal solution for medium or larger businesses. Businesses mainly use two types of Internet access – DSL and T1; DSL is less expensive; however it is not as reliable as a T1 circuit.
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