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Bandwidth Choices for Business DS3/T3

Written by: Les Harper - Feb 2019


DS3 Bandwidth Applications

A conventional T1 circuit is only 1.5 megabits per second. A typical digital 3-minute song is 3 megaBYTES or 24 megabits in size. A typical digital photo is about 2 megaBYTES or 16 megabits. 

The standard PowerPoint presentation is 10 megaBYTES in size or 80 megabits. If 3 or more people in the office were to email a powerpoint presentation at the same time, the office internet connection would slow to a crawl for 3 or more minutes: this does not take into account all the spam email clogging up your Internet connection while attempting to reach your mail server. Nor does it take into account many other new bandwidth-hogging applications that others in the office are using such as monitoring their nanny cam at home, watching Market Watch, CNN streaming video channels, or uploading a photo album to a relative. 

Every day new bandwidth-intensive applications are being developed for the Internet. It's now evident that the common T1 connection can't handle this growth.

Your best option is to research the application of a DS3 bandwidth solution.

 A DS3 (sometimes referred to as a T3 or E3) is a leased private dedicated line that goes directly from your office to an Internet Service Provider (ISP). 

A T3/DS3 connection is equivalent to 28 T1/DS1 connections and uses digital signals on fiber-optic cable at speeds of 45 million bps (bits per second) or 44.736 megabits per second. 

Generally, this type of dedicated line is for 50-100+ users and high bandwidth applications. 

T3/DS3 connections can also be used for point to point access (direct link between 2 business sites). 

As a standard used in the North American and Japanese marketplaces, a DS3 can handle 672, 64Kbps voice conversations or one video data channel. 

The DS3 line has enough bandwidth to transmit full-motion real-time videos and extensive databases over a busy network. 

Generally, a DS3 line would be installed as a significant networking channel for a large corporation, research facility, call center, or university with high volume network traffic. 

But there are multiple smaller-scale businesses uses also....particularly when various locations are involved. 

Bandwidth for a Fractional DS3, up to a full DS3, generally run at speeds of 6 Mbps through 45 Mbps. 

DS3 connection (or T3 connection), is great for companies with large bandwidth needs. It is especially useful as the backbone for Disaster Recovery systems. 

If your company needs computer access for 50 + users or needs to run high bandwidth applications like video conferencing, you are likely in the market for a T3/DS3 connection.

A T3 line is also a viable solution for companies looking to resell bandwidth to their customers. 

The common T1 line can handle 24 simultaneous voice calls or a high-speed Internet connection speed of 1.54 Mbps: this is usually the solution of choice for small to mid-size businesses. 

A DS3 line can handle 672 simultaneous voice calls or provide a high-speed Internet connection of 45 Mbps. 

The T3 is typically used by high-end data and voice customers as it is the equivalent of 28 T1 lines or 672 voice lines. 

Most T3 circuits are "fractional," meaning a portion of the loop. 

A T3 is capable of 45 megabits per second. 

Fractional DS3s are usually, eight megabit per second which is equal to about five (5) T1s. Today this is more than fast enough for most business needs. 

The cost of the T3 circuit is always mileage based. Generally speaking the farther the distance from your ISPs Central Office (CO) connection the more it will cost.

On top of that, there is often a bandwidth usage charge. 

DS3 service can be deployed for a wide variety of applications. The most common uses are T3 point-to-point (tying two distinct business locations together), T3 internet (data), T3 frame relay, T3 voice, and DS3 VPN. 

The pricing for these connections varies widely depending on the carrier, location of service and the application for which the link is used. 

Using a free rate quote research service such as will allow you to obtain current pricing for your location.

Call us today for the best quality solution at the best possible price in your area!