Why Use a T1 Line?
The beauty of T1 is that it is installed and maintained by a local phone company over the wires that they already own and already come into your facility. Specifically you need two pair, which is really 2 regular type telephone lines that have been cleaned up and perhaps boosted with repeaters between you and the central office. But that’s the phone company’s problem. They already know how to do it and can generally install T1 service anywhere within 50 miles of an AT&T point of presence. That’s a lot farther than DSL, and a T1 line comes with a service guarantee to boot. You pay for this wonderful service, but the speed, versatility and reliability are often worth it. So much so that T1 lines are gaining in popularity and dropping in price as we speak. So, expect that you’ll be more involved with T1 and its ilk, such as T3, OC3, and so on. The Scary Parts of T1 In order to transmit as much data as fast as they do, T1 lines use what is called synchronous transmission. That means that e
