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Dedicated T1

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“A brief discussion of OC3”

Is OC3 Right for Your Company?

Written by: Dennis Green - Jul 4, 2008

OC3 circuits carry a bandwidth of 155.5 Mbps. OC3 (optical carrier) is the equivalent of three OC1s; each OC1 carries 51.85 Mbps. OC3 facilitates Voice over IP (VOIP), hosting web sites for very large companies, streaming audio and/or video, or video conferencing. OC3 carries enough bandwidth to supply most internet service providers. OC3 is often far more bandwidth than most companies need. For maximum efficiency and reduced cost, other options include: T1 (1.54 Mbps), fractional t1 (less than 1.54 Mbps), integrated T1 (combination of voice and data), bonded T1 (multiple T1 lines), burstable DS3 (T3), T3 (45 Mbps), or integrated T3 (DS3). Each of the services listed above has unique advantages. Which product is best suited for your company depends on your bandwidth applications and projected usage patterns. To check availability and/or pricing for any of the above mentioned service, please use the pricing tool at the top of this page. It’s easy to use, free, and without obligation. (Click here to return to top of page)

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Dedicated T1 Definition Continued.

A dedicated T1 line is a high speed 1.54 Mbps circuit which is comprised of 24 individual DS-O circuits. Each DS-O circuit has a speed of 64 Kbps. For perspective, your home telephone line is likely a DS-O line. Dedicated T1 lines are also interchangeably referred to as T1 or DS1. Dedicated T1 is carried through two twisted pairs of copper wires. Virtually, all residences and businesses currently have two pairs of copper wires running to them. T1 lines are capable of delivering 1.54 Mbps simultaneously in both directions, one direction for each pair of copper lines. Because dedicated T1 service is repeater driven (signal is digitally reestablished about every 6000 feet), it is available several miles from telephone central offices. For this reason, T1 service can be available to virtually all businesses in the US. T1 lines are dedicated, in that they are not shared like DSL, always connected, and are also extremely stable. Most reputable providers include service level agreements which guarantee the reliability of the T1 circuits they offer. There are several types of T1 line. These include: full (1.54 Mbps), fractional (commonly 128 Kbps to 756 Kbps), burstable (less expensive for companies which normally do not need a full T1, but at times due to peak work loads, need a burst to full T1 bandwidth), integrated (one T1 line comprised of any combination the types of T1 listed here), channelized DS1 (a type of integrated T1), point-to-point (a direct private circuit between to locations), data (internet), local voice (telephone), long distance (for lower long distance phone rates), pri (voice service which a myriad of added features), and frame relay (T1 bandwidth from a shared network). Each of these types of T1 has advantages over the others, depending on the specific needs of your company. Also, the availability of each is based on the offerings of each T1 provider and the geographic location. To check T1 prices for your business, please use the pricing tool at the top of this page. This will allow you to compare the offerings of the top 20 telecom providers in the country. It’s free, simple to use, provides results in real-time and there is no obligation. (Click here to return to top of page)

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