T1
From Bandipedia
What is a T1?
A T1 line belongs to the Tcarrier family of telecom products, and as such is a tried and true means of getting Internet Access (particularly as opposed to the varying reliability of DSL, Cable and Satellite). It is this reliability that is the main benefit of the T1 line.
A T1 is the standard for reliable, fast, and cost effective Internet connectivity for businesses in America. T1s provide a dependable 1.54 mbps of throughput, or 24 times the speed of a standard dialup connection. The circuits are delivered over dedicated copper connections providing constant data throughput, both for upload and download. T1s are ideal for all aspects of business that depend on Internet Connectivity, from e-mail access, web conferencing, and e-commerce applications.
Who buys a T1?
Businesses buy T1s. These types of circuits are considered to be the building blocks of business Internet Connectivity, as they can be used by themselves or bundled together to form multi-meg circuits. Their dependability and consistent data throughput (as opposed to DSL connections) make them ideal for the transit of both data applications and business class VoIP.
How much will a T1 cost?
T1s typically cost between $350 and $600, with the mean price being about $500. Prices are largely determined by the distance of the local loop (often referred to as the last mile), the distance from the customer's site to that of an Internet Gateway. Installation time frames range from 20 to 50 days and are coordinated between the Local Exchange Carrier (local loop) and the ISP (port).
What are the different types of T1 circuits?
Fractional T-1
The main drawback, quite simply, is price. A fractional T1 line circuit is made up of 2 components: a fractional T1 Port, and a full T1 local access line (local loop...last mile). The main challenge of the fractional T1 line (and consequently the reason for its sporadic adoption) is evident in its decription. As phone companies only provision full T1 local loops, the buyer of the T1 line ends up paying for last mile capacity that they can't use (since they've only bought a fractional T1 port). So, the end result is that the fractional T1 typically has a worse cost/benefit ratio than a full T1. A 768k fractional T1 may cost 75% of the price as a full T1, but only deliver 50% of the throughput.
Burstable T-1
Full T-1
When is a T1 no longer enough?
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