Business DSL Solutions
DSL stands for Digital Subscriber Line. DSL is a technology that uses a standard copper two-wire pair (or line) to transmit high speed (high frequency) Internet connectivity to areas that will support the service.
How fast is DSL?
DSL can obtain speeds as high as 1.5Mbps and above, but the speed your location can receive depends on your address, line quality and the distance to your local phone company’s central office (CO).
Can I get Business DSL in my area?
Business DSL service can only be delivered within a radius from your phone company’s local central office. Typically, the highest speed service is restricted to a distance of 15,000 feet from the central office it is served from.
What are the different Business DSL “Options”?
Usually, the speeds and type of business DSL solutions available to you depend on two factors:
1) Your distance from the phone company’s Central Office (CO) and
2) the type of lines used between you and the Central Office (fiber/copper).
Each type of DSL has a different price, and different important attributes.
ADSL
Asymmetric Digital Subscriber Line is best for home and small business users based on price and speed.
It is called asymmetric because more of its bandwidth is devoted in the downstream direction than in the upstream direction.
That basically means that you use it more for downloading stuff, rather than uploading.
The main reason for this is most Internet applications require high-speed Internet download bandwidth while user requests and responses (uploads) are small and require little bandwidth.
ADSL runs anywhere from 608Kbps to 1.5Mbps downstream and 128Kbps to 384Kbps upstream. ADSL is available up to 15,000 feet from a CO.
Typically the download speed is faster than the upload speed. While ADSL can generally be installed up to 15,000 feet, this general rule does not guarantee that we will be able to install the circuit or that the circuit will perform at a reasonable level.
Our ADSL service is also referred to as RADSL (Rate-Adaptive ADSL).
The term “rate-adaptive” means the technology adapts to your individual line conditions, e.g., your specific distance from the CO and the quality of the copper line that serves your DSL.
Speeds expressed with ADSL packages are the maximum speeds your line may achieve. Although we will do everything within our power to provide you with the best possible service, due to the nature of the technology, ADSL services do not come with a service level guarantee. The actual speed is determined by both distance & copper quality, and installations resulting in “best business effort” speed (the maximum achievable speed based on technical conditions prior to install) will be considered successful. As many businesses require a guaranteed service, ADSL is not available for business locations. We recommend SDSL service for all eligible businesses.
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SDSL
Symmetric Digital Subscriber Line is best for heavy home users such as gamers, and for commercial customers. SDSL uses a single twisted-pair line, carrying 1.544Mbps in each direction.
It is called “symmetric” because the data is the same in both directions, downstream and upstream.
ISPs provide different service plans based on the data rate; they range from 192Kbps dedicated to 1.544Mbps dedicated.
NOTE: SDSL will support small and medium sized businesses.
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IDSL
IDSL is based on ISDN, an older technology that was designed to work well with existing ISDN transmission methods.
SDSL, and ADSL travel over regular copper lines and cannot have any electronics on them (such as, for example, amplifiers or repeaters - commonly used to “boost” the voice signal on conventional telephone lines).
Some business ADSL and SDSL orders cannot be fulfilled because of electronics or distance issues that are uncovered during the ordering process. In that case, IDSL may be the best solution.
In other words, IDSL will work great for your small business or home based business VoIP solutions if you are very far away from a telephone CO (Central Office).
