T1-What Is It?

T1s have been a mainstay in the Telecom world since being introduced in 1961. Originally developed to transport digital voice channels, T1s are now used to transport all sorts of traffic including broadcast audio, computer data, IP traffic as well as digital voice channels.

As a T-Carrier, the T1 is a member of the North American Digital multiplex hierarchy. As such it is primarily utilized in North America. The T1, also known as a DS1, operates at a data rate of 1.544 Mbit/s. Other members of this hierarchy include the T3, also known as a DS3, which is equivalent to 28 T1s having a data rate of 44.736 Mbit/s.

So what can the business owner use a T1 for? Providers offer T1 service to provide a very reliable connection to the Internet. Specially configured T1s can also provide multiple services simultaneously. Internet traffic can be combined with telephone traffic on the same T1 line. More about this in future postings. You can also learn more at MPLS.QuoteMyT1.com.

T1 service typically comes with availability and restoration time guarantees. Whereas other services like DSL outages are restored on a “best effort” basis. An outage or problem with a T1 line is guaranteed to be restored within a relatively short period of time. T1 service is also a fixed data rate with dedicated capacity. DSL service, on the other hand, does not have dedicated, fixed capacity. Capacity is shared in some portions of the circuit with other users and at times can provide throughput substantially below T1 rates.

More about T1s and how businesses can capitalize on them will be in future postings.

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